The thing is that none of the WWII era fascist regimes were toppled by their own populace, they were toppled because of an alliance of very powerful foreign countries actively engaging in war against those regimes and expending manpower and resources to fight them for many years. The partisans who eventually caught up with Mussolini could only do so because most o Italy had been liberated by an actual invading army, who could install a friendly government which enabled them to operate freely.

The fascists in the US knows that is not a fate which is going to happen to them, because no countries are going to declare war on them with the purpose of toppling their fascist regime.