Rioting will come and go. Assuming a disqualification is recognized by enough people, then the noise makers will go back into the woodwork for a time.
There’s a lot of misguided people out there who would vote for Trump if he was on a ballot but would not start a civil war if he was not.
I feel like it’s true to say that we are the closest we’ve been to a civil war since the last, but that doesn’t mean that the risk of civil war is high.