I sure hope so.
There's a significant number of Trumpers who are just itching to put on their ~~brown shirts~~ red hats and start wreaking violence.
At this point, it's not really a question of if they do it, but just of when. On that point at least, Trump is right. He just doesnt acknowledge the fact that the reason those people are reaching a breaking point is that he's self-servingly fed them a steady diet of propaganda and hatred.
So they're going to go off the rails - they're vtoo ignorant and too angry and too misled to do anything else.
The worst-case scenario would be that they do it after Trump has (god forbid) been elected. Because then they're going to get official sanction. They really will be the new brownshirts.
The best-case scenario is that they do it soon, and in response to Trump being rightfully sentenced for the crimes of which he has been rightfully convicted. In that case, they're going to have neither the illusion of legitimacy nor official sanction, and they'll just reveal themselves as the lawless, petulant, violent asshats they are.
If he's elected, they'll have free rein to do whatever they want to whoever they want, and they will.
Him being sent to prison would just be a trigger to release the hatred and urge to violence that's already festering inside them. That hatred and urge to violence is still going to be there if he's elected - it'll just manifest a bit differently.