If you think that the war that Black Lives Matter, Antifa, and other leftists are waging against white people is bad, you should see the war that those same groups are waging against black people who don’t toe the party line. They are viewed as race traitors. Three recent stories reveal the risks they run. In Chicago, Joyce Kenner, the principle of the prestigious Whitney Young Magnet High School, is under attack. The Dayton, Ohio, native remembers living through the riots in 1968, when James Earl Ray, a devotee of Democrat segregationists, murdered Martin Luther King. Her son, when...