Damn, looks like I'd be voting for you if you ran for election, lol! But serious;y, I said pretty much the same thing in another comment earlier. Keeping these monsters alive at our expense? Especially for the most atrocious of crimes when there is little to no shadow of a doubt of guilt? Eradication suddenly doesn't seem so bad.
And yes, if that is not an option, put them to work to survive. After all, the law should see them rescinded of all humanitarian rights once in their hands. ISIS are one of the most violent and despicable organisations on this planet and just be association, individuals are classified the worst scum of this world. Seems fair that they should be treated that way.
Blinder of a comment, man. I'm seriously impressed! :)