OK, I’m fully on board with you deciding what racism means. I would have previously called it “system racism”, but if you want me to just say “racism” from now on and everyone will presumably know this is how it is now defined, good. Of course, a lot has been written, including by great black writers, using the white peoples’ definition. Please get the word out, so people are not confused — including to black people who read dictionaries.
Nowadays, I often have to ask people who use the word racism what they mean by that before I can engage in a conversation about it. I’m glad you’ve put an end to that.
By the way, what word do we use when we mean the classical definition of racism? Now that you have given racism its correct definition, we need a replacement word for when we mean what with those white dictionaries are referring to.