I’m sure they can change. Where there’s life there’s still hope. I think it’s better if you talk to them about Jesus, though, instead of trying to make “moderates” of them.
But as you let large numbers of them decide on radical, Jesus or moderates, some of them are going to decide to kill infidels.
That goes along with Trump,Jr skittles comment:
Muslims are commanded to kill infidels, some do, some don't. You can't take the risk by letting them stay in the US.