The 22-year-old Chinese-American was labeled a “traitor” on the social media platform for choosing to represent the United States, and was even told to “get out of China.” After his victory Thursday, some on Weibo complained that Chen was “too white” and Americanized, citing a long list of examples where they thought Chen was “insulting China” with his actions.

Chen has previously refused to speak Chinese interviews, claiming that his Mandarin “isn’t very good.”

The Yale student put his support behind American ice dancer Evan Bates’ condemnation of China’s human rights abuses in an October interview. At the time, Bates came down hard on China’s “awful” treatment of the Uyghur people. The US did not send any diplomats to the Winter Olympics in Beijing because of the “egregious human rights abuses and atrocities.”