I think a lot of people, especially white liberals, have seriously misunderstood why exactly racism is bad.

Racism is not an evil just because it's rude or mean or uncivil or whatever. Racism is not even an evil just because it generalizes large groups of people as having negative attributes. That kind of surface level understanding of racism leads people to say outrageous shit like "white people have to deal with racism just as often as everyone else" or "ACAB is a generalization based on the same kind of logic racists use" (Someone actually said that to me the day after George Floyd was murdered)

The actual reason racism is a malignant, reactionary tumor that must be stamped out everywhere it exists is because of the long and ongoing history wherein white people have continuously used it as the justification for the enslavement, colonization, and oppression of those who they've arbitrarily racialized. Racism measurably makes the lives of BIPOC people much worse on a systemic level, whereas "racism" against white people might hurt some cracker's feelings for an hour or so before their privilege allows them to forget about it.