And it's absolutely necessary for us to urbanize instead of the wasteful way we use our land, in order to avoid the impending climate, biodiversity, and energy crises.
Anyway --- with this square footage argument. End of the day, I'm still priced out of a house, whether it'd be a big one or a small one. I don't really care about the price per square footage, I care about the ability to get a roof over my head.
Edit: Actually, can you provide sources for this? From what I can find, home prices have been anything but flat, even adjusting for inflation: https://dqydj.com/historical-home-prices/ I have a hard time believing that in ~12 years we grew the entire housing stock square footage by 33%
I also found some data that strongly disputes your claim that the US is the 5th lowest house price to salary ratio: https://www.statista.com/statistics/237529/price-to-income-r..., in fact it seems to be comfortably in the top 10 _highest_