I mean, I get all that, but even if we leave out the conditions that might or might not be present in the prison, and how many of the inmates might be innocent (how would we know, without the possibility of due process), I don't see how anyone could justify rounding up people from the US, who where in many cases in the immigration system (meaning not "illegal immigrants" in the classical sense) in the streets and sending them to a prison in a different country, with no legal representation, no contact, and no knowledge of what will happen to them long term.

It's practically government sanctioned kidnapping.