When does race stop being an excuse?
First, one must buy into the premise that race is being used as some sort of excuse for something in the first place.
Thats likely not the case.
In essence we have two conflicting perceptions manifesting a great dissonance between white conservatives and blacks where the former has grown resentful of accusations of racism it neither sees nor practices and the later has grown frustrated with what it perceives as a white majority unwilling to discuss issues concerning race.
Second, that white conservatives might believe the black perception of racism unfounded and wrong, that doesnt assuage the legitimate feelings by blacks that racism nonetheless exists, however subjective and anecdotal blacks have been and are followed in department stores by security, car doors have been and continue to be locked when a black approaches, and handbags and purses have been and continue to be clutched when an African-American draws near.
Third, white conservatives do exhibit what blacks perceive as an animosity toward the African-American community in general, references to fatherless homes, black on black crime, the accusation of black entitlement mentality and blacks politically motivated by free stuff all cumulatively demonstrate to blacks if not hostility then contemptuous stereotyping and unfair generalizations.
Last, that race is perceived to be an excuse is in of itself an aspect of the great chasm between African-Americans and white conservatives, where the right perceives blacks as not taking personal responsibility for a given disadvantage or hardship and indirectly blaming white America for those difficulties.