Even if it's half cheaper, a family house of 80-100m^2 costs beyond 600K which is way beyond affordability range of a couple both working as software engineers let alone people with non-tech jobs.
You now get a fast shrinking middle class and dismal living condition in lower class.
Of course, they could have combated this with more supply. Not sure if they have done so.
It just seems weird to me. Why are people paying such high prices when there is farmland so close by that you could buy and use to build some condominiums, townhomes, duplexes or even single family homes.
[0]: https://www.supermoney.com/inflation-adjusted-home-prices/