We had a thread about this a week before the election.
What will Trump supporters blame if he loses?
Most of them won't accept that he lost and claim it was rigged, at least for the next couple of months. The ones who do accept the loss will blame it on COVID-19 without acknowledging Trump's role in mismanaging it.
This seems to be what is happening right now. If we wait a month or two, most of this uproar should die down. Anyone radical enough to take matters into their own hands will be dealt with by law enforcement.