People have been naysaying China for a while but it's kept merrily growing. Mostly it's because the Chinese tend culturally to be pro education and hard working but in China were reduced to very low incomes by Mao's communism and have since been recovering and getting back towards the kind of economy they have in Taiwan, Hong Kong, Singapore and the like.
GDP per capita in China is $6,800 (up from $951 in 2000) against $32k in Taiwan and $55k in Singapore so there's a way to go. A housing crash will probably just be a blip for a while. They'd have to turn back to Mao to really muck things up.