If you were being reasonable, you might realize that short of those crimes deserving the death penalty, our country is better off just deporting. I don't want to spend $50,000/year (and up) on sequestering someone from our population, when deportation accomplishes that same result. Just make sure the deportation is successful. Send them with a crate of evidence for local prosecutors (who, in theory, should want to prosecute them... unless they really were sending them here to destablize our country with sabotage and rape).
This would remain true for me, even if it had no impact on citizenship of their children.