It is not the fact that the claim is unique that is significant…it is the fact that the claim is true.
No other major world religion claims its founder was God. (There are lots of little fringe wackos that I’m not considering here.) Christianity not only makes the claim but also offers a preponderance of evidence that the claim is true.
If - and I’ll say IF for your sake here - If Jesus is God, then that’s a pretty big differentiation between Christianity and all other religions.
Hope this helps. :tiphat: