Anti-racism is not a political stance. It is a human rights stance, and suggesting that this is just "a political disagreement" is another way in which racism is allowed to endure.
All you are doing is insisting people adopt all of your assumptions, down the line without question, and if they don't, you label them a racist or as promising racism. I am probably not smart enough to contend with this argument. I am old enough and have lived long enough to know when an argument feels like a form of sophistry. Especially when it is this uncompromising and unbending, and frames anyone who disagrees as morally bad.