How do you know they aren't?
There was no trial to determine that these people even have visas, it's just the accusations of the administration.
The admin is additionally working hard to try and shield who they are deporting.
Can foreign spouses of US activists be deported for being associated with them?
But yes, the current US administration is drifting into the same category as China or Russia.
Ergo, all peoples within the United States are entitled to their due process.
This administration is welcome to push for a constitutional amendment to strip due process rights from non-citizens, if they'd like to change the law.
[0] https://constitution.congress.gov/browse/essay/artI-S8-C18-8... [1] https://www.finduslaw.com/us-constitution-5th-14th-amendment...
> I just don't like people taking advantage of the permissive immigration system in the US that me and so many others have benefited from.
That every American without native American heritage has.
Otherwise, it's it's a group of people collecting un-named people, deporting them, and them saying "trust us, we got it right".