The downfall of China is mostly self inflicted by Chinese themselves. There is no Chinese product that is superior than a Japanese or a Korean product. The only thing the Chinese had was mass production capacity. They are only good at dumping mass amount of cheap consumer goods (like furnitures, textiles, etc...) & industrial materials (like steels) onto the global market. But due to 1 child policy & fastest ageing demographics itw, their productivity has stagnated and their consumption base is basically halved. China is utterly dependant on western consumers to keep their population employed. But consumption in the Western world (especially in Europe) has been in decline since 2008 so the Chinese have resorted to hyper financing to keep their economy growing & keep people employed. But this economic development model has finally ran out of steam.
So the question is: how can you grow your economy when your number of workers & consumers are decreasing? The only answer to this is to use your access to the labor & consumer market in other nations. While the Japanese & Koreans outsource their production to other nations, seek to influence them through soft power and make them become loyal customers of Japanese & Korean brands, Chinese seek to subjucate everyone around them like they did to Tibetans, Uyghurs. Thankfully, the world (especially US) has woken up to Chinese malicious intents and will decouple from China as time goes on.
