Trump lost. Biden won. It's all over except putting away the folding chairs.
As for a civil war? I don't think a group of rag-tag men in camo open-carrying guns is somehow going to be magically transformed into a cohesive army. Who are they going to attack? A single governor? Someone to hold hostage as if that would get them anywhere.
Some of them may very well do stupid dangerous things. Maybe they'll go to Bundy's ranch or the Malheur Wildlife Refuge and hold out until someone listens to their grievances.
Trump losing by a normal election is not in any way the same as the SCOTUS overturning an election where Trump lost by millions of votes. Millions of people would be in the streets that day.
There hasn't been any evidence millions are going to march for Trump. Thousands maybe, in a couple cities maybe. Obviously millions of people voted for Trump. That's scary on its face. We should be ready for acts of terrorism.
But Trump lost, it's over and no revolution is coming.