There's an interesting thought experiment. Break America in half by general partisan divide - allow for free migration based on political ideology alone. How lo

There's an interesting thought experiment. Break America in half by general partisan divide - allow for free migration based on political ideology alone. How long would it take before these now wholly 'unified' halves then turn to bitter and polar divisiveness? What would be the new divisive topics? There's probably roughly a 0% chance of success, but Calexit would be a phenomenal social experiment and perhaps something people could learn an immense amount from. On the other hand, there's already an immense amount of information and history people could learn from today. But anything that's inconvenient to 'the' ideology is irrelevant, of course.