“Racism is about race. Jews are a racially diverse group.”
That is true. I didn’t realize that was your point. However, I wasn’t talking (only) about the way that we view Jews but at the way we view others. I had made the point that if being racist means thinking that there can be differences (in general) between different races, then Judaism is racist. There is nothing demeaning about saying that different people are different as long as it doesn’t lead you to treat them unfairly.