I mean the Bible is full of killing and God telling people to kill. Pastors have been full of fire and brimstone for generations. Preaching against immigrants in the US basically since the country was founded, burning witches and calling for slaves to be lynched.
Having grown up a southern Baptist, I can assure you that religion in the South has always been full of this behavior.
Coming soon, Elon will do this same experiment but charge people for the experience of pretending to live on Mars. Fanboys would eat it up.