So is the US slipping into Civil War?

No, the civil war 2 looks like mass shootings and terrorists attacks. It started with the Oklahoma City Bombing. Liberals just refuse to acknowledge it's existence.

There's an argument to be made, though, tha the US has always been in a state of civil war. The Spartans would symbolically declare war on their slaves every year. That's kind of what slavery is: a constant war on a portion of the population. That's aside from the whole genocide of native folks. Since the 13th amendment didn't actually ban slavery, it never ended and if you look at standing rock, you know that whole native genocide thing never ended either.

Then when you contextualize all this with stuff like the Red Summer, you realize the recent violence is just the normal terrorism that white supremacists do every now and then to get control back. There probably won't be a war with two side, more just escalation violence from one side leading to the systematic murder a huge chunk of the population. The question is if it will be officially sanctioned like the Holocaust, or continue with the ad-hoc stochastic terrorism like the Rwandan genocide and the Serbian ethnic cleansing.

I expected more snipers, bombings, and attacks on infrastructure but if Trump wins it's definitely gas chambers.

Democrats are too afraid of "real war" to actually do something about this. If they did they might have to deal with the mess for real and open themselves up to political challengers from the left.