More and more people are beginning to find this not merely possible, but plausible:
The thought of Civil War has been in the minds of many people lately, on both sides of the political and cultural divide. This is not a thing to be wished for, though no one should kid themselves into believing it’s impossible either. Let us take a sober look at what such a conflict might entail.
To begin with, it would not look like the first American Civil War, which was essentially a war between two regions of the country with different economic interests. The divide created two separate countries, both initially contiguous, intact, and relatively homogeneous. The lines of demarcation now are only somewhat regional, and tend to correspond to differences between urban and rural populations, as well as differences of race and class. A second American Civil War would be much more similar to the Spanish Civil War, with the leftists dominating the cities and conservatives controlling the countryside. Conflicts of this nature, with enemies mixed geographically, are a formula for spontaneous mass bloodletting. India-Pakistan during the 1947 partition comes to mind as another modern example. Given an absence of legitimate government and the friction of proximity, ordinary people can be moved to settle grievances by killing one another without the need for governments to egg them on.
Some dimensions of a future civil war would be, I think, largely unprecedented. When lesser countries have imploded in violence in recent times, they have done so with most of the world around them still intact. There were other nations to offer aid, assistance and intervention, welcome or unwelcome. There were places for refugees to go. The collapse of the world’s remaining superpower would take much of the world down with it. A global economic crisis would be inevitable. The withdrawal of American forces from bases across the world to fight at home would also create a power vacuum that others, even under economic strain, would be tempted to exploit. Whichever side gained control of our nuclear arsenal, our status as a nuclear power would probably persuade other nations not to interfere in our conflict militarily, but the collapse of trade alone would produce crippling effects that would be hard to overestimate. Many components for products our manufacturing sector makes are globally sourced.
Add to this the breakdown of our transportation system, dependent on oil and transecting one new front line after another. The internet would fail. It is a frail enough now. Financial systems would fail. What happens if the banks find half their assets suddenly in hostile territory? All Federal government functions, including Social Security, would fail, many of them losing their very legitimacy to one side or the other. Food production, heavily dependent on diesel fuel, chemical fertilizers and pesticides, not to mention a steady supply of genetically engineered seeds, would slump alarmingly. In short, most things we depend on are now held together by a network of delicate and complex connections.
Without those connections, would you have a job? If so, in what medium of exchange could your employers manage to pay you? What would there be for you to buy? Does your town, your county, or even your state have the ability to marshal its resources into a viable economy? How many people in those entities could deal with anything worse than a weather disaster, in which they count on the fact that help is coming soon?
As I have said many times, great movements of peoples is nearly always accompanied by war, sooner or later. It would defy both logic and history to assume or insist that the USA will be an exception.