I suppose it depends on how comprehensively you would see the power structure reversed. In the Mississippi Delta where I lived briefly, African-Americans were in a very overwhelming majority so over 80% the elected officials (from the Law Enforcement and Mayors all the way up to the Congressman) were Black. I understand it's not the same as being a minority in the overall society but I have experienced being refused service in a business because of my race, I've been taunted because of my race, and I've been harassed by the police because of my race. It was an interesting experience, one that I think many people would learn much from.