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.
As far as I understand;
A user is specific to one instance. In order to interact with the fediverse on that specific account, they need to log into that instance. If they’re banned from that instance, they cannot log in and interact with the rest of the fediverse.
There’s nothing stopping them from logging into an alt, whether on that same instance or on another instance.