I have a theory that people's political beliefs are largely manifestations of the behaviors that make sense within their economic system. So Blue America cares a lot about women's rights and abortion access because women are an integral part of the knowledge-worker economy, without which it couldn't function. They care about identity politics and political correctness because the information economy requires close creative work in teams, and you can't do that kind of work unless everybody has a certain psychological sense of safety. They care about redistributive policies because cities are big enough, dense enough, and diverse enough that you can't rely on social pressure to make sure everyone contributes. They care about diversity and immigration because you can't run highly-specialized knowledge-based businesses without bringing in talent from elsewhere.
Meanwhile, Red America cares about gun rights because you basically need them to live in a rural area where wild animals may surprise you at any time. They care about taxation because the businesses are usually self-reliant, independent firms (often in commodity markets) rather than deeply-networked, interconnected systems which often depend upon government R&D. They care about cultural homogeneity and upholding sacred traditions because that's a large part of the social fabric in smaller towns & cities where everybody knows everybody else. They care about liberty because they don't want Blue Staters lording their foreign values over them.
The California Conveyor is basically a manifestation of one socio-economic system growing and eating the other. As the world's population gets bigger and more interconnected, the relative size of the information economy gets bigger compared to the manufacturing, resource-extraction, and agricultural economies. That sucks up young people who are looking for jobs in industries that are growing, and deposits them in big cities. When they've made their fortunes and want to settle down, they move elsewhere, where land values are lower. But they're still embedded in the economic system (many keep the same professions, but work remotely or for different employers) and they keep the values that make sense with that economic system.