Interesting presentation, but you've got a couple logic holes. #1 is that Islam has commited more murder in the recent past than any of the others and is in today's modern world the main source of violence. The second is that while dictators who reject religion have killed many, you'd have a hard time proving that anyone has ever been killed in the name of atheism. Religious wackos blow people up all the time because they think God is telling them to. Dictators do it for their own sick lust for power.
