You are just not getting this. It’s not about charging the POTUS with a crime. It’s about locking up a dangerous person (known to be dangerous because of what is observed about his connections, intentions, and actions) BEFORE he can attack this country or its people. It’s about preventing great harm. The Constitution calls it providing for the “common defense”, and it is CONGRESS who is given that responsibility. Even to the specific point of making rules about captures on land or sea.
They have made those rules about captures. They are in the NDAA. Unless you show me where the NDAA says the POTUS can’t be captured if he is classified as an enemy combatant, then the military is to be at least as vigilant of him as of anybody.
Show me where the NDAA says the POTUS can’t be captured even if he’s found to be an enemy combatant.
Here in this country you don’t lock up our people to get them out of the way. Everyone has due process. For ordinary people that means being charged - with all the Constitutional protections that are involved, which allows for appropriate bail and a speedy trial.
For a person in the Office of President of the United States of America ... THAT OFFICE has specific Constitutional provisions for removing a “that particular person” from that “office”. Short of “that process” you’re not going to be able to even “touch” that person while in that office. When that person is removed from that office, then they can be handled as other average people in this country, who still have their Constitutional protections (as would that person if removed from office).
UNTIL that person is removed from the “Office of President of the United States of America” ... you’re not going to be able to even touch him in any way shape or form.
That Constitutional process is your ONLY route - besides the ballot box or the end of a term.