As most of the Liberals are city dwellers, I think the power and water systems being down will bring them to their knees rather quickly.
The only reason these pin heads talk about fighting is because they are utterly clueless about the deprivations they will have to suffer if there should actually erupt a civil war.
Modern cities are death traps. It takes very little in the way of a disruptive force to make them unlivable.
Don’t forget the havoc if food shipments stopped going to a major city.
See parts of New York after Hurricane Sandy. I recall the people in the Coney Island high rise living in filth because there was no water to flush the toilets and no power to run the elevators so they couldn’t get out.