And indeed, this is not Nazi Germany. They won’t put you in a train and send you off to a place where they’ll gas you.
They’ll try to force your country of origin to take you back (while you sit in a detention centre somewhere) and if that doesn’t work, they’ll send you to a 3rd country they pay to house you in a jail.
Oh wait… you’re innocent of any crime? Doesn’t matter. And SCOTUS confirmed it.