The zero-Covid is just an excuse to manipulate the local (increasing wealth of citizens) and global (supply chain disruption) economic landscape. This should be obvious to anyone, but I guess is not, and some people still think this is about Covid.
https://en.wikipedia.org/wiki/Four_Pests_campaign With no sparrows to eat them, locust populations ballooned, swarming the country and compounding the ecological problems already caused by the Great Leap Forward, including widespread deforestation and misuse of poisons and pesticides.[9] Ecological imbalance is credited with exacerbating the Great Chinese Famine.[12][13] The Chinese government eventually resorted to importing 250,000 sparrows from the Soviet Union to replenish their population.[14]
In the chemical industry it's pretty bad. Some stuff I know shops in China refuse to synthesize anymore because it's like they tool up and then they can't sell it anymore to anyone because some US agency bans its import.
Of course if they also stop making phones everyone gets mad.