Real talk, it’s going to be like the troubles or the early days of Nazi Germany, not like people forming battle lines and shit. The only way the latter happens is if states secede; one viable scenario I’ve considered is California/Pacifica seceding and a subsequent shooting fight over water rights, because of how much water California gets from the Colorado River basin and other water sources outside its borders. But realistically, it’s going to be shitty partisan on partisan on innocent bystander violence.
Best advice I’ve heard is to form close ties and mutual aid agreements with your neighbors and friends. A small network of people can be far, far, far more resilient in defending protecting themselves than individuals or families can.
You’re not really using the fediverse until you’ve been told that you’ll get the bullet, too. Sometimes, it’s exhausting commenting something pretty uncontroversial and then seeing like eight notifications and realizing it was on Hexbear.