ISIS, Hezb'allah, AQ, Hamas, al Fatah, IRG, the Taliban...
There are probably 300 million radical Islamists in the world, with (I'm guessing) a half million here in the US.
Where to start and how? I don't have a complete answer, but I know where I would start and (as bad as they are) it isn't with ISIS.
It’s a multifaceted problem, I agree.