The essential flaw in China is the lack of people's confidence in Communism and totalitarian structures of government. That is to say, it is not external measures or lack of power and genius on the part of China that is the Achilles heel. Rather the very fact that Communism is not believable to the average man. Tell to the average guy that whatever he owns is theft and exploitation. Most will not believe that.
This was the reason for the fall of the USSR. Not from external pressure, but from simple lack of confidence in a 19th century variation of some obscure economic theory. '
[Das Capital by Marx would sit in book stores in the USSR for years collecting thick layers of dust.]