"But racism, bigotry, and white supremacy? No. That's hate speech, and IMO, shouldn't covered under the principle of free speech." There are serious scholars s

"But racism, bigotry, and white supremacy? No. That's hate speech, and IMO, shouldn't covered under the principle of free speech." There are serious scholars such as Arthur Jensen who have studied the origin of black/white differences in IQ test scores and concluded that a large fraction of the difference is genetic in origin. One can read "Thirty Years of Research of Race Differences in Cognitive Ability" (2005) by Jensen and Rushton https://www1.udel.edu/educ/gottfredson/30years/Rushton-Jensen30years.pdf https://www1.udel.edu/educ/gottfredson/30years/Rushton-Jense... . To what extent there are racial differences in IQ is a scientific question, not a moral question.