I'm not so sure I agree with you, then again I'm not so sure I disagree either.
The Islamists and radicals that have been opting for a large scale "Holy War" just might get what they asked for. Maybe that's a good thing, as such events have a way of shaking things out and settling scores.
Either way the Islamic fundamentalist problem needs to be solved one way or the other as it's a friggin' cancer on humanity. Obviously, these people will not stop until the hammer is laid down hard enough to make them stop.
I (like you) not sure if WW3 is the answer, but maybe it is.