So where are the citations? Also you're acting like housing affordability is a US phenomenon. It's global and effects essentially all large cities worldwide, funny you mention Tokyo which has seen massive increases of housing prices compared to salaries [1]. Saying land/housing behaves like other goods completely ignores the fact that land/property is by default a limited supply asset that almost never depreciates in value, that is very different to pretty much any other good. People have shown that much of the increasing inequality highlighted e.g by Picketey is due to assets (largely land/housing)

[1] https://www.reuters.com/markets/asia/surging-tokyo-property-...