There is more social unrest in many parts of Europe than there is in the United States. That said, there is huge cultural divide anymore between Urban Metros and Rural areas. The folks in rural areas like to think of themselves as self reliant, but most aren't at all. They are completely dependent on wealth transfers from urban metros to rural areas. For example, the entire state of Kansas essentially lives off of taxpayers in greater Kansas City. They would be doing good to have running water and flush toilets in western Kansas if they did not have JoCo taxpayers paying for it. This happens at both the state and the federal level. Unless that changes, there is no chance of us ever having anything close to a civil war again.