Urban rats barricaded in cities self devouring without food, gas and electricity.
Rural outposts armed, sniping anything approaching the perimeter.
Key issue no one wants to deal with - who grabs the military hardware, which way do base commanders go - serious offensive weapons national guards will need.
2nd key issue no one wants to deal with - are there any Republican governors with the nads to protect their state. I highly doubt it. Dem Rat governors really don't care who they kill and what they have to do to protect their power. You cannot rely, at all, on Republicans. They will all have to be replaced with newly formed Patriot governors willing to kill Dem Rats. When you go Kosovo, you don’t go pretty.
You are correct. It's called "Balkanization" by the way. If that happens here, we are doomed. Someone who hates us, Mexico or China (or probably both working together) will invade us. Then all the people who can't control their hate for one another will die together.
But the suburbs have the cities surrounded.