They want this escalated until either every Arab is dead or every American / European / Canadian / Mexican or what have you is dead. I say, then, lets have at it. It should not be a unsurmountable task to kill every Arab in fairly short order.
So when they are gone, the world will have lost what? It will have lost a population that had the potential to be worthwhile human beings, but instead chose to be animals.
Besides, the bleading hearts of 2060 will need something to sob over.