You can't be racist to white people.

Racism directed by white people against, say, Chinese people is despicable not only because white people on the whole have an inordinate amount of wealth and social and political power, and thus their own racial animus presents a real threat, but because the Chinese specifically have historically been the victims of majority white imperialist nations and the targets of the most vile racial discrimination in majority white countries.

It's the same as cracker versus the n-word. Guy calls me a cracker, it's little more than a simple insult. I call a black guy the n-word, it's far more offensive, because people who looked like me used to call people like him that word while owning them as property, denying their human rights, and lynching them.

The powerful cannot be the victims of the powerless, and one categorically cannot be racist to white people.

A person can only believe otherwise if they're wholly ignorant and deny the history of racism and racial inequality.