At the end of the day, white supremacy has traumatized both black and white people. Black people are afraid of a government which has not and will not protect them; white people are afraid that perhaps their injustice, or complicity in the dispensing of injustice, will come back to haunt them.
In a presentation of the theses contained in her book, Post Traumatic Slave Syndrome: America's Legacy of Enduring Injury and Healing, author Joy DeGruy, Ph.D. asked the mixed-race audience, "How many of you think there is white racism?"
I asked Robert Lee what he would say to Dylann Roof if he had a chance to talk to him, and how God would judge the mass murderer. He said: "You crucified Jesus yet again on the cross of white supremacy."
Right-wing hate groups do not cause prejudice in the United States -- they exploit it. What we clearly see as objectionable bigotry surfacing in Extreme Right movements, is actually the magnified form of oppressions that swim silently in the familiar yet obscured eddies of "mainstream" society.