There are more anti-gay Christians, but the most violent homophobes are usually Darwinist atheists. Most Christians just don't like gays because they're afraid, they've been told that God really hates gays and that gays are a plot by the devil, and honestly anymore most of it is probably just because it reminds them of the looney left. Pure Darwinists on the other hand see the game of natural selection as the whole meaning of life, so to them the strong have the right and even a duty to eliminate the genetic "failures". They believe in eugenics with no ethical boundaries at all. Not those who merely believe in evolution, but those who make a god out of it and deny that any other meaning or purpose exists. These people tend to be alt-right, and I mean alt-right, not "Oh no an orange man supporter!"