This would be stupid. The major danger of Clinton - WW III - would become even more probable if they would become terrorists.
Oh hogwash. Stopping Putin's aggression and his theft of their lands isn't starting WWIII. It's actually preventing a WWIII. The West tried appeasement with Hitler and it resulted in WWII. Unfortunately, for you and your beloved Putina the West hasn't forgotten that lesson. If your beloved Mother Putina wants to get suicidal, that's on him and the Russians who have enabled him.
There is, of course, the general danger of every totalitarian state - and the US moves in this direction - that all the enemies of the leader will be declared terrorist, enemies of the people or so.
You mean like your beloved Mother Russia?