No one is disproving the conspicuous numbers. On average, about 25% of Black students in New Jersey have attended public schools since 2015 that were 99% non-white. About 40% of white students went to schools that were more than 75% white. And 62% of Latino students learned in buildings where their classmates were more than 75% non-white. But is that data evidence of a statewide system of de facto school segregation, as plaintiffs suing New Jersey allege? Or could it be the result of housing choices and the locations of private schools, as a state lawyer suggests? Superior Court Judge Robert T…