My first point was this. Just because someone is doing the work of evil doesn't mean we can then say oh they will never come back to God. That understanding is outside ours. God can bring anyone he chooses back to him. He doesn't make creations to not serve him however he knows what we will do before we do so he might use our choice to not choose him as a way to influence others. We don't get to say things like this person could ever come to God. We should hope all his creations should return to him