They've discussed deporting US citizens to gulags - https://truthout.org/articles/white-house-press-sec-says-tru...

He was detained at immigration. This happens all the time, and has been happening routinely since 2001.

(Not saying it's good or anything - just not new).

The authoritarian future isn't evenly distributed. Some groups of people have been dealing with it for decades, while others are in for a surprise.

Freest country, hardly anyone lives within 100 miles of the coast I'm sure https://www.aclu.org/know-your-rights/border-zone