I would be honestly less concerned if I thought the administration would be successful in deporting people. I think you're relying heavily on "due process" here, when the reality is they can just accuse you of a crime, deny you bail, and then hold you pretty much indefinitely. You let the ones who can get lawyers out and you've pretty effectively filtered the population for wealth.

The Nazi death camps started as temporary internment camps with the intent to deport Jews eventually.

Then they just ended up with a whole bunch of people in camps with nowhere to send them and were like, "well, we might as well get some work out of some and kill the rest" and it sort of escalated from there.

Which with their "camps for the mentally ill, homeless, and drug addicted" and "deportation emergency" sounds alarmingly similar.