Socialist-funded government K-12 schools remain the most massively segregated institutions in America. There is nothing that comes even close. Why?
Answer: Socialist government interference in the education market greatly poisons private housing decisions.
Schools are segregated due to quality of life issues. Blacks and Hispanics are associated with crime and school violence. Ask Asian immigrants who come to the US. The ones that go to majority black and hispanic schools receive daily beatings, lunch money robbery and tauntings from mainly black and hispanic students. Most Asians find the blacks are the worst while the hispanics are the least. Contrast the experience of Asian immigrants who go to majority white schools. Attacks and harassments drop drastically. So based on that experience, guess where most first generation American Asians are going to live and send their kids to school?