A sincere apology would be him placing 50 lb weights on his ankles and then hanging himself from from the tallest Inca pyramid. ....Aztec or Mayan as well.
But....just before he leaped he would accept the gods of the indigenous people whom his fantasy religion raped, pillaged, and plundered for hundreds of years...including today.
Then...only then I might believe him
He's sorry?? what would these robed men do without their church??? They'd be homeless living in a gutter and people would pass by and call them crazy while they peached and begged outside of a 7-11