Earlier quoted context omitted.
It's fine to expect some people to buy a house with cash. I don't think that precludes saving for many years to do so (meaning the median income doesn't need to be $1M/yr).
Unfortunately housing prices are rising so fast that saving for years doesn't necessarily get you there, unless median income is close to ~1M by my back-of-envelope calculations, which include: - taxes (1M is close to 500K after taxes) - money that you need to cut out and put into retirement to sustain yourself from age 65-100 - living expenses and rent until you buy - real estate prices rising the whole time
Which will of course be stratospheric in a world where median labor costs $500 per hour.