Does God even want state-mandated prayer?

Calls for a return of required prayer in the nation's public schools are common on social media and letters written to the editors of local newspapers.  Some who I would count as valued colleagues and friends are echoing this call.  As the theory goes, this is a key to turning around the American culture and bringing back a golden age of Christendom where America's status as a Christian Nation was unchallenged {A return to a supposed past Golden Age is a common trope in history, one rarely based in reality; a different topic for another time}.  Setting aside the question of whether or not state-mandated prayer in schools would benefit the culture (An assumption made in the argument, but how would one know if it is true: crime rates?  teen pregnancy? drug use?  Would prayer be expected to lower such things by 10%? 50%  With a complex system like a nation/culture, we cannot single out one factor for much of anything because of interconnected cause/effect.), or the Church itself (Was the Church healthier during periods when the population was required {on pain of various penalties} to pay nominal homage to God?  When everyone living in the land was assumed to be a Christian by simple right of birth regardless of any evidence of the Holy Spirit?  Was that marriage of Church/State a healthier Church?), even if we assume that both the nation and the Church would benefit, that there wouldn't be any unintended negative consequences to either, there still remains a fundamental question that is not being sufficiently considered: Does God want state-mandated prayer?
How can we know the mind of God?  A pertinent question, and one that has a simple answer: we can't, unless God chooses to reveal his mind to us, primarily through his revealed Word.  What then does the Word of God say on the subject?  How has God responded in the past to the worship/prayers/sacrifices of those whose hearts are not invested in the act (in other words, unwilling or indifferent participants)?  For rest assured, if prayer was mandated in the schools, there would be millions, likely a majority, of children and teachers who are not enthusiastic supporters of the particular prayer being offered {Certainly not for Jewish, Hindu, Muslim, Buddhist, agnostic, or atheists, as well as those Christians who would disagree with the particular form and/or verbiage of the prayer being offered.}  A sampling of relevant texts of Scripture follows:

Proverbs 28:9 New International Version (NIV)
If anyone turns a deaf ear to my instruction, even their prayers are detestable.

Isaiah 1:13-18 New International Version (NIV)
13 Stop bringing meaningless offerings!
    Your incense is detestable to me.
New Moons, Sabbaths and convocations—
    I cannot bear your worthless assemblies.
14 Your New Moon feasts and your appointed festivals
    I hate with all my being.
They have become a burden to me;
    I am weary of bearing them.
15 When you spread out your hands in prayer,
    I hide my eyes from you;
even when you offer many prayers,
    I am not listening.
Your hands are full of blood!
16 Wash and make yourselves clean.
    Take your evil deeds out of my sight;
    stop doing wrong.
17 Learn to do right; seek justice.
    Defend the oppressed.[a]
Take up the cause of the fatherless;
    plead the case of the widow.
18 “Come now, let us settle the matter,”
    says the Lord.
“Though your sins are like scarlet,
    they shall be as white as snow;
though they are red as crimson,
    they shall be like wool.

Amos 5:21-23 New International Version (NIV)
21 “I hate, I despise your religious festivals;
    your assemblies are a stench to me.
22 Even though you bring me burnt offerings and grain offerings,
    I will not accept them.
Though you bring choice fellowship offerings,
    I will have no regard for them.
23 Away with the noise of your songs!
    I will not listen to the music of your harps.

Malachi 1:6-10 New International Version (NIV)
Breaking Covenant Through Blemished Sacrifices
6 “A son honors his father, and a slave his master. If I am a father, where is the honor due me? If I am a master, where is the respect due me?” says the Lord Almighty.
“It is you priests who show contempt for my name.
“But you ask, ‘How have we shown contempt for your name?’
7 “By offering defiled food on my altar.
“But you ask, ‘How have we defiled you?’
“By saying that the Lord’s table is contemptible. 8 When you offer blind animals for sacrifice, is that not wrong? When you sacrifice lame or diseased animals, is that not wrong? Try offering them to your governor! Would he be pleased with you? Would he accept you?” says the Lord Almighty.
9 “Now plead with God to be gracious to us. With such offerings from your hands, will he accept you?”—says the Lord Almighty.
10 “Oh, that one of you would shut the temple doors, so that you would not light useless fires on my altar! I am not pleased with you,” says the Lord Almighty, “and I will accept no offering from your hands.

Luke 18:9-14 New International Version (NIV)
9 To some who were confident of their own righteousness and looked down on everyone else, Jesus told this parable: 10 “Two men went up to the temple to pray, one a Pharisee and the other a tax collector. 11 The Pharisee stood by himself and prayed: ‘God, I thank you that I am not like other people—robbers, evildoers, adulterers—or even like this tax collector. 12 I fast twice a week and give a tenth of all I get.’
13 “But the tax collector stood at a distance. He would not even look up to heaven, but beat his breast and said, ‘God, have mercy on me, a sinner.’
14 “I tell you that this man, rather than the other, went home justified before God. For all those who exalt themselves will be humbled, and those who humble themselves will be exalted.”

These are not all of the texts of Scripture that reference insincere or tainted prayer/worship/sacrifices, but they will suffice to show the point: God does not desire, nor accept, from even his own people (or at the least, those claiming to be his people) prayer, worship, or sacrifices that do not come from a humble obedient heart.  If then, these unacceptable efforts were not helpful to the people of Israel, nor to the Church, because they were not genuine, how would they be acceptable to God coming from people of other faiths, or no faith, when compelled by the power/authority of the state?  What about those prayers would be pleasing to God?  Is it not as likely, if not more likely, that such disingenuous rote and compulsory prayer would anger God rather than please him?  Is false prayer better than no prayer at all?  The warnings of the Jewish prophets appear to say 'no'.

Two other factors to consider: (1) Any prayer designed by the government for use in public schools would by its very nature, in keeping with the 1st Amendment, be entirely devoid of specific reference to God.  It could not be a prayer to anything other than a generic god, for generic blessings, and generic guidance/help.  It could not mention Jesus, nor reference the Gospel's call for salvation by grace through faith.  It would, by necessity, be a bland prayer.  Would such a prayer be instructive to young people (what exactly would it teach them about the nature of God?) or pleasing to the God whose name and deeds that we do in fact know?  Even if the government were to somehow avoid violating the 1st Amendment while still including reference to Jesus, it would not differentiate the Jesus of the true Apostolic Church from the Jesus spoken of by the Jehovah's Witnesses or Mormons (both of whom speak highly of Jesus, but a Jesus whose nature and work is very different).  How could a prayer be constructed under the limitations that exist (Nobody is advocating for a repeal of the 1st Amendment, so we must consider this call for prayer in schools within that parameter) that would be properly honoring to God?  (2) If a conservative/evangelical inspired government (the only one likely to pursue this course and the background of those calling for a return of prayer to schools) were to impose school prayer, what is to stop a future liberal/secular inspired government from taking that same prayer and making it explicitly multi-faith (for example: replacing "God" with Allah, or Jesus with Buddha, or stating that all names/approaches to God are equally valid.  'O God, whose faces are many, though all people call equally to you...')?  What started out as a 'win' for Christendom could quickly become an exercise in blasphemy that Christian children would be required to participate in.  If then, that prospect causes anxiety, should not we, as Americans, not wish to put that same anxiety upon fellow citizens who happen to be Muslim, Hindu, Buddhists, etc?  Even though I am 100% convinced that there is only one God, and that he has made himself known as Father, Son, and Holy Spirit, that does not mean I would welcome a return to the policies of past eras where people of other, or no, faith were compelled to acknowledge a God whom they do not believe in.  As a Baptist, I naturally look with trepidation upon any government compelling people in the realm of religion, our ancestors in the faith didn't enjoy being on the wrong end of that, and if we ourselves would object, we cannot advocate imposing the same thing upon others {"Do unto others..."}
The same objections to mandated prayer in school apply to mandated Bible classes in school.  As a former English teacher, I can see the value in teaching the Bible as literature (however, this viewpoint would also treat other religious texts like the Qu'ran in the same way; as literature for students to be made aware of as part of a well-rounded education), and the value in history classes of learning about the role of world religions in human history (a huge factor to be sure, to ignore it is to do a dis-service to history), but NOT the value of having public schools attempt to teach Christian theology.  The reasons are the same as above: (1) Any teaching would have to be generic, and thus liable to offend various Christian sects who vary on one point or another from the mainstream (i.e. Baptists being more/less on their own about baptism, any class on the basic of Christian theology would teach the majority viewpoint), (2) and any class set up to be acceptable to conservatives/evangelicals when they are in power could then be switched to one whose curriculum is approved by a liberal/secular government?  Once again, what started as a 'win' for Christendom could quickly turn into the means to advance what the traditional/apostolic Church considers to be heresy.  If the success of an idea depends upon 'our side' remaining in power, and would subsequently become anathema to us if 'our side' were to lose power, then perhaps that idea is best left on the shelf.

From a strategic standpoint, it seems to me that both prayer and Bible classes in the public schools are a bad idea for the Church, even if they are a 'win' for Christendom (a dubious claim at best).  Others will disagree and see these tools as a means for advancing the cause of the Gospel in the face of an increasingly secular society.  They will contend that the potential benefits outweigh the risks.  We can agree to disagree, as Americans we have that right.  The far more important question that is not being given enough consideration is this: Would God be pleased by these efforts, indifferent to them, or angered by them?  If the examples of Scripture are any indication, and since they are the revealed Word of God, and God does not change, they must indeed be instructive for us concerning the mind of God, the most likely response from God is anger, followed by indifference, leaving pleased as the least likely.  Perhaps there is a Bible-based counter-argument in favor of compulsory prayer and Bible education, given the antipathy shown in the Bible itself to fake prayer/worship/sacrifices, it would have to be extremely compelling.