Look at the legal analysis, not the sensationalist story: this is IIRC preexisting legal machinery, now being used for a different purpose.
You dislike how it is used; I dislike that it exists. We are not the same.
But there are requirements for at least some attempt at individualized due process, and those are being ignored, which is mostly new. And there are certain reasons they don't get to use, and that's also being ignored. And probably shipping people to abusive facilities in El Salvador violates some laws that weren't being violated before.
Was US immigration law always inhumane and immoral, both as written and as enforced? Yes. Was ICE always full of thugs, and did it always tend to push to the very edge of what it was allowed to do? Yes. Have things gotten worse in qualititative ways, including violating laws? Also yes.
What's interesting is how much of a grey area that the due process question is. Non-citizens may or may not actually legally merit due process, and to whatever degree they might, they only merit it while "within" the "jurisdiction" of the US. And as far as I can tell, that 'grey area' of how the 14th amendment is read, plus the alien enemies act, is probably legally enough to justify this - and we also have all kinds of exceptions for dealing with "terrorists" (thanks, Obama).
Lets also not forget how much legal precedent Guantanamo provides when dealing with non-citizen (or even US Citizen!) "terrorists".
I don't think you've been specific about any other laws - just a couple of guesses about 'probably violating' things.
You seem to be radically misreading a condition on conditions at birth that applies to birthright citizenship clause of the 14th Amendment as a modifier on conditions at the time of government action against them that applies to the due process clause of the same amendment, but also, the 14th Amendment has no bearing on whether people have due process rights against the federal government, in the first place, as the due process clause of the 14th applies to the states.
Due process against the federal government is provided by the 5th Amendment, so even if the misreading of the 14th was right and applicable to due process rights, it would limit only the due process applicable to certain people for actions by state governments.
> Lets also not forget how much legal precedent Guantanamo provides when dealing with non-citizen (or even US Citizen!) "terrorists".
Well, yeah, but most of that legal precedent was negative for unchecked executive power (and even restrictive of legislative abuses), see Rasul v. Bush, Hamdan v. Rumsefeld, and Boumediene v. Bush, most notably.
I missed that bit about the 14th amendment.
This has nothing to do with the 14th amendment. The 14th amendment argument is about who gets ius soli citizenship (what they call "birthright citizenship"), not about the treatment of anybody who's agreed not to be a citizen. The administration has made claims about jurisdiction limiting what they have to do for non-citizens, but not on that basis.
So far I don't think they've actually tried to deport anybody born on US soil. If they do, then the 14th Amendment comes into play.
The existing cases are about the 5th amendment, Article 1 habeas corpus, common law, immigration statutes, etc, not the 14th.
Even the current Trump-enabling Supreme Court just affirmed that they get due process. They restricted the judicial vehicle for that to habeas corpus, which sucks because the person being grabbed has to actively request it... but they were clear that there had to be actual, meaningful access to habeas.
At an absolute minimum, the claim that somebody's a non-citizen to begin with is something that has to be proven at a habeas hearing.
... and permanent residents, at least, are statutorily entitled to have the government show cause before removing them. It can be pretty shitty half-assed cause. And it can be shown in a shitty half-assed administrative immigration "court". But it has to be shown. And if it's not shown properly, that can be appealed to a real court.
