One of the things that the First Fruits of Zion (HRM), Christian Fundamentalists (KJV Only zealots), and Latter-Day movements (JW, LDS, etc.) have in common is the belief that they alone have the Truth with respect to Jesus Christ.
But what are the implications of such a belief? What does it say about God if 99% of those who have ever put their hope in Jesus Christ were actually in fundamental error?
The answer is that in their view God is weak, a failure.
But that's not what the Word of God proclaims.