Oh, you mean the astronomically higher incarceration rates of blacks? The ridiculous voter ID laws being introduced across the country? The increased likelihood of being subject to a 'stop and frisk' despite the decreased likelihood of finding a weapon? The fact that most public school systems are funded by property taxes, so poor areas are underfunded?
I can only imagine you're referring to affirmative action, which I would say has done little to undo generations of structural inequality.