And if people use religion, then would there still not be fewer wars if they couldn't?
Loads of people bring up Stalin as a refutement to the point that religion causes strife, but religion still causes strife, just because some strife was non-religious means nothing. Power hungry people might still be evil bastards, but the populace aren't. It's not a refuting argument, mate. That the Troubles in Ireland are ongoing is nothing to do with people being power hungry, it's because there's a massive split based on religion. Power hungry people will have great difficulty organising the people against another group if they're all secular, but it's a piece of piss otherwise. Which is why I said, America wouldn't have invaded Iraq, were they all Christians. And all my points still stand, seriously.
Nazi Germany wasn't secular but was catholic (and they hated atheists), anyway, that's a big ol' myth.
Another few points; sharia law, the Salem Witch Trials (still happens nowadays (link) and that ruined loads of people's lives, I live in a town still recovering), stem cells, suicide bombers (only nationalism and religion have ever convinced people to give up their lives in battle, kamikaze Japanese bombers and all the current suicide bombers we see nowadays), the State of Israel wouldn't exist....
et cetera. It's not just power hungry people, that's apologism. And even if it is, the power hungry need a powerful ideology, which, 75 times out of 100, is religion, and the rest of the time it's nationalism, which is quickly dying and is also mixed up with religion. And so often it's not just the power hungry, it's the populace. Israel / Lebanon. Sunnis / Shi'ites. Protestants / Catholics. 'Stalin' does not save religion.