Do you think real estate can really be sustained at it's current levels? Much of it has been bought as a speculative asset (no property taxes makes that easy) with the idea that it can only keep going up because of urbanization. However, farmers are generally poor not rich, it is not clear where the "bigger idiots" are going to come from.
China's tax burden is already high for those that pay them. Going after those that don't at the high end is difficult because they tend to be officials or highly connected to officials in the first place.
The housing market may crash: I was talking about the claim that economy in general crashing. But I think the PRC might see a housing market crash as desirable, as it would raise the standard of living for most citizens. They certainly seem bent on slowing it down. https://www.reuters.com/article/us-china-economy-property-in...
China does have economic problems, but they are more problems of political will, not intractable from a strictly economic perspective. The solution involves the country's elite taking a haircut.