Well done. Too bad so many people missed the point here, but maybe it’s been a while since they’ve taken logic. It’s a nice little modus tollens.
P1) If people really believed Trump will be a fascist dictator, then they will take steps A, B, C, and D to prevent electors from electing him.
P2) They are not taking steps A, B, C, and D.
C) Therefore, they do not really believe Trump will be a fascist dictator.
That’s a nice little method of showing that these folks are just “[spouting] alarmist nonsense for political effect”.