Absolutely true.
However, that would be several thousand out of a billion-and-a-half.
Admittedly, there are probably only several thousand "moderates" among that billion-and-a-half, too.
But, then, there is the 95%-or-so who haven't made a decision yet, one way or the other.
What purpose is served by making all of them your enemy?
Such thinking is the problem. This is asymmetrical warfare. Suppose that we had worried about making global enemies when we nuked Japan. The rest of the world still condemns us for that. So what? Some of us know that we must be ruthless and fearsome toward this enemy. Half measures only prolong the suffering of innocent Muslims as well. Ponder that.
It eliminates a violent CULT from the world stage.