The biggest selling science-fiction book ever (thus far!) is Dune, by Frank Herbert. I've been reading it. In one of the sequels, I came across this memorable quote:
" When I am weaker than you, I ask you for freedom because that is according to your principles; when I am stronger than you, I take away your freedom because that is according to my principles."
That was penned in the 1970s. If we applied it to the course of the anti-Christian movement of the last couple of generations, could there be a better description?
Act one: tolerance, tolerance! Let's all get along! We just want the same freedoms as you have!
Act two: Die, you bigots! You have no place in our society!