These "demands" are doing more harm than good.  Isolated cases of rudeness are blown out of proportion and blur the reality that everyone gets bumped-around by the vagaries of life once in a while, me too.  I try not to take it too personally.  One more thought:  The percentage of blacks in Lane County is 1.1% and 2.1% in the entire state.  If I really wanted to be exposed to black culture, I'm not sure if Oregon is the place I would go.