I completely agree. I think that being genuinely anti-racist means opposing racism whoever it’s directed against. Concepts like reverse racism or “punching up” are meaningless. We either believe in certain principles of humanism or we don’t. MLK, as he usually does, said it beautifully:

God is not interested merely in the freedom of black men and brown men and yellow men, but God is interested in the freedom of the whole human race and the creation of a society where all men will live together as brothers. And every man will respect the dignity and worth of human personality.