Exactly. I'm willing to believe some of these people were indeed "bad dudes", but literally 0 evidence was provided one way or the other. And these people weren't just deported back to their home countries - they were imprisoned in demonstrably brutal fashion.
Yeah, yeah, Godwin's Law and all that, but the similarities with mid-20th century fascism are undeniable here. The administration specifically started with targeting a small, well-defined minority (that is, people in the US illegally, or at least purported to be here illegally), and then extended to valid visa holders (what's the point of being on legal visa if it can be revoked at any moment with no judicial review and then you can be imprisoned for weeks/months) and now legal permanent residents. It's just classic creeping fascism.
Due process is important for protecting the innocent, but due process is also important because it documents the crimes of the guilty.