>He also believes that Asians and Jews are on average the intellectual superiors of "white" people, so it's not clear to me how that's "white" supremacy.
Is it also the definition of racism to acknowledge that some races may have higher incidences of certain diseases, like sickle-cell anemia or cystic fibrosis? There are differences between the races. One of those differences is skin color. That doesn't mean it's the only difference.
The fact is that when you plot the results of IQ tests, the accepted measurement of intellectual capacity, along with race on a chart, a strong correlation is present. I don't think we should ostracize people who've performed this experiment and noted the results. It's not "racist" to perform this experiment, and it's not racist to acknowledge the widely-repeated results.
People usually say that the correlations demonstrate that the IQ test itself is racist. Maybe that's true. But just plotting race and IQ on the same graph and noting the outcome is not.
but it is the literal definition of racism...