So this is essentially the "outlaw" argument: that if one breaks the law in any way, they cannot rely on the
protection of the law. We can put aside for a moment the fact this would leave us in a wild-west lethal hellscape. The argument doesn't hold water here for several reasons;
Firstly and most obviously: these people have
not been found guilty of any crime. The most we have for some of them is innocuous tattoos, clothes, or rock-music gestures.
A reminder: it's not illegal to seek asylum, so long as one presents oneself through the right channels. At least 2 dozen of these people did exactly that. So they did not "bypass legal process" when migrating.
Secondly: "due process" is the application of proper judicial procedure
by the state towards accused individuals. There is no judicial "due process" code of conduct required of random civilians. So the idea we're only applying it at the "tail end" if we want the state to follow it...is completely idiotic. We want to apply it exactly where it is meant to apply.
The relevant codes of conduct for ordinary people are civil and criminal law. Which 1) have their own legal restitutions set out, which don't include the suspension of due process; and 2) were not shown to be broken by these people anyway.
Thirdly: Due process is specifically about how to ascertain guilt or innocence for those accused of crime; what rights still apply; appeals and notice in that circumstance etc. So if you're arguing that due process shouldn't apply of someone is accused of failing to follow procedure... well, that's the whole goddamn point of it, so you're essentially saying you just don't believe in due process full stop.
Fourthly: let's follow the train of logic anyway. Donald Trump is a felon. A sex abuser and fraudster. Can I assume that if you want due process suspended if someone is guilty of a crime (or even merely accused), then you'll be fine with Trump thrown in prison for these things, courts-be-damned?
In short, it's a dogshit argument.