I would have thought that is the very thing they must be judged by unless you want a very different sort of society
Well, it is they who want a very different sort of society.
Their mindset and way of thinking is way beyond the scope of our society.
So you would suggest a trial, perhaps a conviction with a reasonable sentence to be halved, a short term in prison with all the rights expected of a prisoner today, appeals on the grounds of human rights, lawyers getting rich, then release and a return to murderous acts.
Yes, that is the way of our society.
Iranian backed Houthis have taken over critical land on the Red sea.

with their utter stupidity.