A) Nobody in the US has legally been a slave since the 13th amendment was passed. B) Nobody alive is that old. Plus, the White was built 50+ years before that amendment was passed. C) Obama is part white, and his father came from Kenya—I don’t believe that either his mother or father have slave origins in the US.
His entire speech was a revolutionary call for minorities to take over America. The worst was he started with “We crossed the Rio Grande”. He is announcing a takeover by illegal Mexicans.