Well if you want the possibility of military tribunals you have to accept the risks of something like the 1962 Algiers coup, the 27 May revolution or (if you want a more recent example) the Wagner rebellion. I'm not certain that would be palatable to Americans but I'm not American myself so wouldn't know.

I grew up in an America that spent a lot to explain what it was willing to do for a Republic and ideals. The people who will quietly give a traitor an illegal 3rd term to avoid a more upsetting crises that could either save the Republic or just make it clearer it is over are apparently what the US actually is.