Umm. California by itself has the 5th largest economy in the entire world.
They are also the largest producer of agriculture in the country, so that kinda blows your entire argument out of the water.
And given that almost every single red state takes more from the federal government than they contribute, the red states would go bankrupt.
So ya, let's have the civil war. You guys can build your huge wall around Kentucky and populate your army with all that negative cash flow.
Next, we can talk about what your little paradise would actually look like once you've thrown out all regulations, worker's rights, civil rights, etc. - you know, all that stuff that evil liberals and sjws fight for, or have already. Have fun working 70 hours a week for $500 a month, while you eat unregulated food littered with pesticides, breathe in toxic fumes from the sewage dump across the street, depend on surgeons and doctors who may or may not be who they say they are, and deposit the pittance you earn to a bank that may or may not go bankrupt and lose all your money. In your world, corporations will be completely exempt from legal recourse by an individual. Women will be 2nd class citizens, all drugs, including alcohol would be illegal, along with pornography, R rated movies, and music with no-no words. Actually, I don't think you'll have to worry about any of that. Remember? Hollywood, Silicon Valley, your precious cell phone, the operating system you are utilizing at this very moment - that's all progressive liberal shit, and are almost entirely headquartered in progressive liberal hellholes.
If you really want to play the game of who would have what - you guys have nothing but some coal mines, corn fields, churches, and monster truck rallies. Your sports teams would completely suck and all entertainment would vanish since the media is also part of the 'evil left'. Education would be a hoot - you'd be left with the scabs because the majority of education I've been told are purple haired Marxists who want to usher in gulags. You guys can teach that "virus' just go away" and "the earth is only 6,000 years old" all you want. I could literally go on and on.
Maybe next time you bump into a Californian, you should thank them for putting beans on your table.