Freestyle skier Eileen Gu and figure skater Zhu Yi, both American-born teenagers who chose to compete for Team China at the Beijing Winter Olympics, have made headlines in China for very different reasons. While Gu won gold and was hailed as the “ pride of China ,” Zhu fell three times and was disparaged as an “ embarrassment .” Online commentary about their performances reveals the contours of present-day Chinese nationalism. Zhu’s parents emigrated from China to California, where Zhu was born. Her father is a prominent computer scientist who has taught at UCLA-Peking University and Tsinghua University. In 2018,...