Hitler renounced Catholicism. Hitler and his minions were adherents of Norse Mythology, which was a lovely precursor to... wait for it... the New Age movement.
So far as "1,000 years of killing" it's a lot better than, "1000 years of being killed", or, "1000 years of being Muslim", wouldn't you say?
As Stalin rightly opined, "How many divisions does the Pope have?" The answer is "none". So much for the military might of the Vatican.
Yet in the end the Pope's zero divisions brought communism to its knees. Much like Jesus' zero divisions in time conquered the Roman Empire, the greatest empire the world has ever seen.