Racist GOP Sen. Tom Cotton asks man from Singapore if he is a Chinese Communist

This guy is the CEO of TikTok and he was being specifically questioned for TikToks ties with China. The fact that he is Singaporean has nothing to do with his potential ties with China, as point of origin and your life choices to become associated with various groups are two completely separate things. How is this racist? This is more akin to setting a baseline for further questioning down the road, that he states he has zero ties with China.