The USSR dissolved under the illusion that they were going to liberalize their highly industrialized economy and open up to the entire Western market.
The richest state in America, California, derives half of its tax revenues from capital gains e.g. stocks and bonds and various financial assets. If this is the economic structure of the richest state (I don’t even have to talk about New York property market), then every other state in the rest of the country is going to endure an even worse fate. Good luck seceding and immediately losing the privilege of having the strongest purchasing power in the world.
Any serious attempt at doing so will immediately find out this is impossible at the planning stage, because they first have to figure out how to run their economy independently from the rest of the country. Any talks about secession are mere rhetoric and can never happen in America as long as the dollar is king.
You mean MAGA fascism?