It is hard to extinguish such deep-seeded roots and social problems when it is always portrayed in the media, in books you may have read in the past, in the schooling system, and even by government foreign policies. Such practices as 'do as I say, not as I do', does not hold well infront of public opinion, especially those who are victims of such heinous crimes. Examples can be written just of the top of the head: Native Americans and their treatment, African-Americans and the increasingly big margin between the rich and poor, not remembering that poverty breeds violence and criminals, how the US still stands on half of Mexican land; and so forth.
Even on the State of the Union address by Bush, stating that "African-Americans have shorter lives". He didn't even address the real question of why they have shorter lives; all he wanted to show was how much they would benefit off of his privatised Social Security plan; which incidently limits more benefits from the poor and working class, cutting Healthcare and limiting more hospital aid to homes and refuges.
So until such concerns are raised publically, and it is given a resounding voice for reparations for those who are oppressed, such inequality will only give birth to more inequality.