Mr. Kenyatta, correct me if I'm wrong.
Rape is the reason. White men raped enslaved men and women repeatedly and often. White men enjoyed watching each other penetrate and ejaculate into the bodies of enslaved men and women so much, gang rape was legally, and socially, acceptable. In fact, gang rape and multiple white men raping the same enslaved woman, made social condemnation impossible, because no one knew who the father was.
Whether they admit it or not, every white American sees the cold, hard evidence of white rapists in the face of every African-American they see.