The crimes of atheism have generally been perpetrated through a hubristic ideology that sees man, not God, as the creator of values. Using the latest techniques of science and technology, man seeks to displace God and create a secular utopia here on earth. Of course if some people - the Jews, the landowners, the unfit, or the handicapped - have to be eliminated in order to achieve this utopia, this is a price the atheist tyrants and their apologists have shown themselves quite willing to pay. Thus they confirm the truth of Fyodor Dostoyevsky's dictum, "If God is not, everything is permitted."
Whatever the motives for atheist bloodthirstiness, the indisputable fact is that all the religions of the world put together have in 2,000 years not managed to kill as many people as have been killed in the name of atheism in the past few decades.
It's time to abandon the mindlessly repeated mantra that religious belief has been the greatest source of human conflict and violence. Atheism, not religion, is the real force behind the mass murders of history.
HT: John Devito