True. But a little time spent reading Martin Luther could lend itself to violent anti-semitism.
Hitler no more understood Jesus and real Christianity than he understood quantum physics. I don't blame Christianity or religion for what he wrought. Nor do I blame atheism for what Stalin did.
Collectivism - the notion that the group has rights superior to the individual (be that group the race, the religion, the cause, or society) - is what is to blame for the genocides of the past.
Like the theory of evolution?