White people in America have convinced themselves that overt racism is the only kind that affects people of color. They’ve taught themselves to dismiss the culture of white supremacy that exists below the surface of racial slurs and Nazi chants. Their version of history depicts the violence of their ancestors as heroic and righteous, with monikers like “In 1492 Columbus sailed the ocean blue.” In 1972 when Angela Davis was interviewed while she was in prison, she was asked if she thought that violence was …