The always estimable Ed West explains:
“Anti-racism” is not the same as being opposed to racism; rather it is the name sometimes given to a particular authoritarian view of what racism is, and how it can be combated.
The conventional definition of racism is the belief that “race” (however one defines that) is a primary or significant cause of differences between men; that some of these races are superior to others; and that it is acceptable to discriminate on grounds of race, or to behave unpleasantly to someone because of their race. The term dates to the 1930s, although “racialist” and “racialism” go back to the Edwardian period.
[Anti-racism] is heavily influenced by a Marxist interpretation of race. Oliver Cox’s 1948 work Class, Caste and Race presents the idea that race originates in “a practical exploitative relationship” used to justify the exploitation of one group by another as part of capitalism.Racism is created to justify imperialism, exploitation, and scapegoating when things go wrong, and to divide the population to prevent class consciousness from forming.
Racism, therefore, is a product of western, European society, which is why those schooled in British academia are so bad at seeing racism when it is committed by non-whites, because only whites can really be racist.
This, itself, is a racist idea, because it views only whites as being fully sentient actors capable of committing right and wrong, when of course racism, like all human feelings and failings, is universal.
So if you consider yourself an “anti-racist”, you are, in fact, a racist.