The point is that the population used to be much more dispersed, even 20 or 40 years ago. If more people like me moved back to their ancestral regions, the demand would become a lot more distributed.
The current trend of everyone coalescing into a few ant-like megalopolises has to revert somehow, otherwise we will end up in a dystopia: casket-sized microapartments costing 50 per cent of your income in rent.
Land is enormously valuable in huge cities and that is what is driving the cost of living up. Meanwhile, there is a ton of underused land elsewhere.