You're describing income inequality. Personally, I don't believe income inequality is good for everybody. I think it tends to benefit some people at the expense of others.
https://chatgpt.com/share/67b36262-3c7c-8013-aa61-f1ff8088fb...
> But you don't see very many people moving from the highest-income cities in the U.S. to places like Appalachia
CA declined in population this decade until 2024:
https://apnews.com/article/california-population-growth-pand...
So yes, people are moving out.