You have every right to feel angry, but there is a middle ground. And, frankly, I'm a bit cool on the idea of killing of a billion people in a global religious war.
I don't want to kill them all, per se. Just stop them from killing others.
Thus, the number who die are within their control. If they want to risk all, then all are subject to death.
I hope it won't come to that. I doubt it will come to that.
They only attack when they have numeric superiority or some other advantage, like sneaking up on the unsuspecting.
you leftist wacko ;-)