You are right - no problem in raising your fist - UNLESS you are encouraging a bunch of traitors. Then, perhaps, there is a little problem?
The people who voted for him either don't understand that he is a traitor or they need to be educated?
Shall we send them off to re-education camps? Gulag them until they learn the error of their ways? Exterminate them if they refuse to comply?
Are they traitors or are they patriots? Terrorists or freedom fighters?
Republicans see this through an entirely different filter and they still control half the government so your chances of locking anybody up for anything are fairly slim.