Not eve sure how a Civil War would work in 2020. Civil War requires two militaries fighting a war against one another. Right now we are seeing protests in the United States. There is a very small amount of destructive protest as part of this. We are nowhere close to armed mobs battling each other just to fight, let along fighting with an objective to control cities. If mobs did start to attack each other, the local, state, and federal government would quickly and decisively put an end to that.