I don’t disagree with your point about real estate being a serious problem but I was commenting on a totally different point as I stated previously.
Regarding Chinese real estate being the biggest industry in the world — I’m not sure where you are getting your numbers. China’s real estate industry is smaller than that of the US. I posted this previously and will repost it again.
2019 data:
: ~13%.
: ~10.5%. (in fact, real estate, rental, leasing are smaller than 10.5% of China's GDP because this includes business services as well)
Construction is
and 7.2% of China GDP, although construction obviously encompasses much more than just real estate construction and China has a higher percentage because it builds more highways, railways, ports, dams, grids, and other public infrastructure.