Thats never going to happen again. Look at the Vietnam war. There are vietnamieese citizens in the Us during the war and were they deported? No. Afghanastan, Iraq, plenty of muslim
Immigrants who came to the US before 9/11, deported? No. As i said before Trump has to get that through congress because that would be a law. Odds of that happening are next to 0, if it does someone is going to appeal it to supreme court. There it will be deemed unjust and law reverted. If it does pass, holy **** america is screwed.
Worse casenario would be they would be spyed on by the govt, but thats already happening. Hi NSA!