At the same time, I've read a bit more about that incident, and... this is probably not politically correct to say, but I did develop some sympathy for that bishop. Yes, he was a religious zealot who couldn't distinguish other cultures from "satanism". But also, well, the Maya were in a pretty rough state when he encountered them. They'd been experiencing severe drought and civil war and plagues brought by the Europeans and more. Their way of dealing with this was mass human sacrifice. The Maya didn't have a sacrificial-industrial complex the way that the Aztecs did, but when nothing else would appease the gods, that's what they'd do.
So anyhow, the Bishop had apparently witnessed a mass human sacrifice. Of children. And it really got to him, convincing him that their religion was strictly satanic. Given his own cultural frame, and what he witnessed, it's hard for me to say that I would have done any differently under the circumstances. That would've gotten under my skin too. Hard to say I would've kept perspective after that.