Walter Johnson, Harvard historian and author of the acclaimed River of Dark Dreams, urges us to embrace a vision of justice attentive to the history of slavery—not through the lens of human rights, but instead through an honest accounting of how slavery was the foundation of capitalism, a legacy that continues to afflict people of color and the poor. Inspired by Cedric J. Robinson’s work on racial capitalism, as well as Black Lives Matter and its forebears—including the black radi...