Good luck murdering ALL of the Christians, Jews, and Communists, your going to need it lol.
Honestly, I doubt it is possible to eradicate all of them 3 groups, especially since Christians and Jews usually ally together, and Communism is pretty much everywhere, even though in small numbers mostly. I mean, sure, where I live, no Communists, but their are quite a few Christians, and no Muslims that I am aware of, although I know of at least a dozen Hindu's in town.
Christians and Jews usually ally together
In Israel/Palestine the Christians and Muslims are on one side and the Jews are on the other.
Really?
Well, here in the US, Muslims do not usually ally themselves with Christians. Usually they are constantly arguing, although rarely, at times it can be violent.