It’s not hard to imagine. There was another brawl in Portland last weekend. Throw in a few more James Hodgkinson-style assassination attempts, maybe some more James Fields-style vehicle attacks on protesters or counter-protesters. Perhaps the police start declaring legitimate rallies / protests “unlawful assemblies” and using force to break them up because they’re so fraught with danger, maybe the protesters of whichever side decide to retaliate with more Micah Johnson-style attacks on law enforcement. Perhaps someone assassinates a SCOTUS justice or Senator or something. It’s not very difficult to see how something like that might escalate into something resembling a civil war, even if it doesn’t quite feature both sides squaring up across from each other on the town green.
And a civil war in America, with college-educated chemists and mechanical engineers and the like on both sides would truly be something horrific to behold. It would have the potential to be a hell like which the world has never seen before.