No details on her background in here that might help us judge if the rep was being racist or a realist.
Wikipedia:
In 2012, a Chinese spy, Christine "Fang Fang" Fang, volunteered for Chu's campaign and is suspected to have used political connections to spy for the Chinese Communist Party. Chu was one of several Democratic politicians who were targeted.
In 2015, The Intercept published an investigative work by Ali Gharib and Eli Clifton, assisted in part by the work of independent researcher Joanne Stocker, indicating that Chu received $11,150 from the People's Mujahedin of Iran (MEK) between January 2009 and September 2012, when the MEK was listed a Foreign Terrorist Organization. She is an advocate of the MEK.
In 2019, Chu was named "honorary chairwoman" of the Forums for Peaceful Reunification of China, an organization opposed to Taiwanese independence. (
https://web.archive.org/web/20230127144008/https://www.lvcnn.com/cn/mobile/news.php?id=27591)