You are exactly correct. Those words “legal process” and “won’t be allowed in illegally” . I have your same concern - they will all be let “legally” under the claim of asylum & then released. I am hoping NOT. I am hoping Trump has a plan not to let them in a all and the military will not just be caretakers/babysitters. As I have said before, each caravan of invaders will get bigger & bigger, if the previous one is let in.
Horde is a much more appropriate.word than caravan.