An average family in Tokyo does not live in a detached house so the whole argument is false. About 27% of the units are detached houses and the ratio is decreas

An average family in Tokyo does not live in a detached house so the whole argument is false. About 27% of the units are detached houses and the ratio is decreasing a bit. Plus Tokyo is almost 100km wide. That's a huge area and of course there are places where housing is dirt cheap because people are fleeing away.