> How we view the regret over the camps is, outside of that, mostly irrelevant to the context in which the issue was raised in this discussion.

How do you arrive at that conclusion?

The Japanese internment camps held both citizens and non-citizens. The camp in El Salvador currently holds mostly non-citizens but Trump issued a statement where he expressed enthusiasm for putting "home growns" in the camp as well. It is speculated that "home growns" refers to US citizens.

Obviously EO 9066 was necessary because the alien enemies act wasn't sufficient to intern citizens, and both citizens and non-citizens were put in the camps. Trump's comment about "home growns" suggests that he may issue a similar order, which in my view makes the two situations quite analogous with respect to the principles of law involved in taking people into custody without trial.