Last week, Covid-related images provoked outrage on Chinese social media: one showed a young woman kneeling on the ground with her hands tied behind her back after she and a friend had picked up a takeaway meal without first donning masks. Neither had Covid, neither was even a close contact, but both had been detained by the increasingly resented “big whites”, the hazmat-suited zero-Covid enforcers who bound the women’s hands and left them kneeling in the street, an exercise in humiliation that provoked indignation among China’s netizens. Meanwhile, Tianxiacheng community, a residential compound in the central city of Zhengzhou, gained…