Can we stop with the clueless idiots nonsense? Some are that. The POTUS is also insane. Many more are much, much worse.
Marco Rubio absolutely knows due process is a right for all persons subject to U.S. law. It's not only a right for citizens, and having taken this right away from persons, in no meaningful way can it be said it's preserves for citizens.
The federal government is at best in abeyance. And an adversary at worst.