This still is not how you do things.
For starters, if they are terrorists, then they should be locked up in our jails, not deported where they can continue to plan attacks.
But before we do that, shouldn't we have a trial? You know, the whole "innocent until proven guilty" thing? How do we know, for example, that this isn't just a case of mistaken identity? Or a zealous ICE agent? Heck, how do we know that this isn't some agent getting back at his girlfriend?
That's why we have courts and trials.
When you are welcomed at someone's house, you don't start going around by lecturing them on how to run their house.
They are free to support Hamas, just not in the US as students.
Again, you are free to speak your mind. Just, that, if I invited you to dinner at my home and you start criticizing everything I'll gently ask you to leave and go have dinner elsewhere.