What continent contains Iran, Syria and (as the other comment pointed out) North Korea?
Still I think the general idea is pertinent. Why the focus on China?
Personally I think foreign real estate investment is bad, and should be severely dealt with. I don't think it's fair for rich foreigners to essentially park cash in American housing. That specific sense that this activity is wrong can be generalized into a better policy solution, where we don't have to pretend that it's only bad when the Chinese or the Russians or whoever does it. It's also bad for private equity to do this, but that's a separate topic.