Religion is a catch-all for beliefs, ideology, etc, and it is religion. The fight is your sky God versus my sky God. Meanwhile, it’s the same fucking God.
Name a mass genocide / terrorist attack committed by atheists. And I’m talking about groups, not some neckbeard from Reddit who decided to shoot up a school.
I’ll wait.
I think you are confusing him with the other moustached man of WW2
Stalin “only” killed 1.2 million at the high estimate. He killed people because they were in opposition rather than a certain race like Hitler.