The writer's gift can make us see ourselves and our morals differently than our reality suggests.
Blackness also has positive dimensions, those that bear the political meanings of African American people, among other blacks, who have struggled for self-determination and freedom for centuries. The absence of such an identity doesn't automatically guarantee that we will be free of the images and ideals that fuel stereotypes about black identity. Changing the name will not alter the reality.
Class certainly loomed large in Katrina's aftermath. Blacks of means escaped the tragedy; blacks without them suffered and died. In reality, it is how race and class interact that made the situation for the poor so horrible on the Gulf Coast. The rigid caste system that punishes poor blacks and other minorities also targets poor whites.