How could China follow the same course as USSR

With a POD after 1976, how could we get China to follow a similar course of development to the USSR? (i.e. have it become stagnant and corrupt and the communist government eventually collapsing)
 
China could follow the same course as USSR if Deng Xiaoping doesn't became a paramount leader of China after the death of Mao Zedong and the Gang of 4 rules China instead of Deng.
Pretty much, though I suspect that this wouldn't be enough to actually bring down the CCP. Let's remember that even today, after thirty plus years of industrialisation, the PRC has a much larger relative peasant population than the USSR did. Had the hardliners won out then I'd imagine it more likely that China remains a peasant state dependent on subsistence farming. In this scenario, very different to 80s USSR, the CCP could easily maintain power
 
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