"I don't know (and unlike you, won't SPECULATE ON) what he thought or felt."
Even though you're willing to "Speculate" (and present as fact) that he was thinking/feeling that:
"CHRISTIANITY would fall by the wayside as other religions had before then."
I would "speculate" that 'ol "G" was probably HOPING that it would. Folks who thing they're RIGHT just HATE to realize/admit that they're wrong.
But as usual - just another "Argument from silence".