>>15968115 (OP)its because communism was clearly a cheap rip off version of Christianity, all utopian ideologies or modern morality in general are inspired from what Christianity introduced to the world egalitarianism, empathy and utopian thinking
not just communism, many other ideologies and beliefs are inspired by christianity because that religion was the most revolutionary idea in human history, before Christianity, egalitarianism and love and people being equal was seen as nonsense
video explains it very good