I think it's less of a government thing and more of a personal thing. People who live in cities need to dig deep and try to understand why their countrymen in the rural areas believe the way they do, and vice versa. For example, the gun control debate: Someone living in a rural area who is thirty minutes or more from a police response sees advocacy for gun control as a direct threat on their ability to protect themselves, their family, and their property. On the other hand, a city dweller sees advocacy for gun rights as a threat to their safety, because in their experience only those wishing to do them harm, and the police, have access to firearms. (Full disclosure: I have an opinion on this topic but I'm merely using it to illustrate my point here)

If people can somehow learn to respect and understand each other, more compromise may be had and we might be able to turn around this slow-motion trainwreck. Nobody seems interested in compromise anymore; the only acceptable politics is some form of tyranny, whether its the tyranny of dense urban center over rural farmland (California being a fantastic example of this, but it is far from the only state) or the tyranny of one party over the other. Compromise is the name of the game, and without it, democracy fails.

EDIT: Lol, the comments are proving my point much better than my examples did!

Not even a majority of Republicans want a civil war. It's just a bunch of wonks looking for views and loud idiots who don't get what it would actually take for it to happen or what the fallout would be. This has also been a narrative that Russia has been pushing for decades.

I live in Texas. The rural and urban Republicans here do not all see eye to eye. When they've actually worked at passing non-performative legislation the two groups have fought each other on many occasions. There is no monolithic GOP here. And if there's no monolithic GOP in Texas, then it likely doesn't exist elsewhere. They only succeed here because of the stigma attached to voting Democrat. If the Dems had run someone other than Beto and who had good charisma, there might have been a fair chance at unseating Abbott. As it stands, Beto still gave him a run for his money and his smallest win yet. Hell, it was the smallest GOP win since W beat Ann Richards in 1994, so almost 30 years. This is against a man who the GOP here absolutely hates with a burning passion. There were plenty Republicans interviewed who said they didn't want Abbott, but Beto was a non-starter for them to vote Democrat. All that and he still got the biggest vote percent for a Dem in 28 years.

All this talk of civil war is just bunk that has no basis in reality whatsoever. It is all just foreign propaganda that people on both sides are eating up without using their critical thinking skills.

Edit: Allow me to put forth a more timely statistic. Recently the Texit movement tried to get a resolution to discuss Texas leaving the Union. Out of the 103k signatures they gathered, less than 9k were actual Texas citizens. So, in a state with 30 million people, this group could not even muster the 0.3% of the population of this state to want to leave the union. They didn't even get 0.03%. So, do you think Texas really supports leaving the Union or joining a Civil War? No, they don't. Neither do the politicians because they know the absolute nightmare it would be to try to support all the people who would lose their federal support. Every military veteran getting support from the government, every retiree, every child in a poor household. Texas makes a fair bit of coin, yeah, but they don't make enough to be able to replace the payment for all those without significantly raising their taxes and people here are already pissed about taxes, especially their skyrocketing property taxes. There's zero chance any politician who supports any increase in the way the government generates funds, whether you call them taxes or fees or whatever, will get re-elected. Abbott, Patrick, etc, are not so stupid as to not be aware of this. Nor are other conservative political leaders across the country that stupid or unaware, either.

The lines aren't geographic this time though, they're largely urban vs rural, so IDK how land would get split up.

Insurgency.

I mean, we had 9/11, the War on Terror, the 2008 financial crisis, the entire Trump presidency, various natural disasters, COVID-19, an incessant housing crisis, and the economic problems that followed the pandemic (such as inflation). I don't think it's hyperbole to say that the United States has been battered by a full barrage of crises and disasters since the start of the century, with the exception of a few years of relative stability in between. The kind of privilege it would require to have been able to live through the past twenty years without feeling battered is hard for me to fathom.