For many who want to #resist against the alt-right and white supremacy, Antifa has emerged as an acceptable counterweight to neo-Nazis. They were lauded by some after they stood up to Nazis in Charlottesville, Va., in August. This mostly white radicalism only concerns me in the ways in which it might affect Black people. My first and last priority is always what is in the best interest of Black people. Antifa has a mystique that is attractive to some of our sisters and brothers who are actively engaged in struggles for freedom and liberation. This mystique might grow as we...