whether or not you have religion or not, good people will do good things, bad people will do bad things. But to have "good" people do bad things, that takes religion.
The message of a religion is important as its followers are already conditioned to believe nonsensical fantasies. The message of Islam itself is not peaceful in anyway, so you have devout people following the book and prophet they revere. The book and the prophet are both despicable.
When the extremists (religious theocratic core) of Islam want to dip into the pool, they are dipping into the 1.6 million or so moderates. In other world religions people are generally not threatened with death (honor killing) for leaving, this seems to be allowing those to grow up as a religion or out of it, losing the fantasy. So in general the only world religion not growing up and out of this nonsense of the past is Islam. Its just growing.
