Judges, under the American system of jurisprudence, have the authority to order the release of people who have been wrongly imprisoned, e.g. such as if the president orders a sitting member of Congress arrested with no warrant, indictment, or charge.
The same one that’s stopping him from throwing Hillary Clinton, Joe Biden, James Comey, Leticia James, Mark Kelly, Ilhan Omar, and Anthony Fauci in prison.
And that assumes a judge even hears the case. IIRC three native American men are still in ICE custody a week after being detained. Still no court hearing. They are full-blown US citizens. Born here and not to immigrant parents seeking an anchor baby.
Because judges ordered it to be so and the administration complied.
Per your own source;
In December, the judge in Abrego Garcia’s habeas corpus case found he was held by ICE “without lawful authority” for months following his return to the U.S. from a prison notorious for torture in El Salvador.
U.S. District Judge Paula Xinis, a Barack Obama appointee, ordered Abrego Garcia’s release, also finding the Trump administration “affirmatively” misled the court on the facts.
You get extremely tedious when you enter this mode – particularly when so frequently shown the logical fallacies that underpin your positions and statements.
And judges have the power to compel obedience with their orders. The fact that they do not always choose the maximal possible method of doing so does not imply that those so ordered are free to ignore their orders.
Practically nobody has claimed he has absolute power, so if that is the straw you desperately want to cling to, it is almost entirely a straw of your own making.
Your comparison is invalid. Hitler had absolute authority under German law at the time. There is no comparable act under US law that gives Trump absolute authority.
Your argument, therefore, is that Trump somehow has the power to ignore courts, laws, and the Constitution with utter impunity, but up until now has CHOSEN to voluntarily comply with those rules because (hey, look over there!), but that at some point in the near future he’ll start doing whatever he wants and nobody will stop him, despite the multiple undeniable instances in which his attempts to do whatever he wants have been stopped.