Most of the African Americans I know aren't complaining about being "bombarded" with "obnoxious comments about 'privilege' and 'oppression' all the time." Most of the African Americans I know seem to consider the issue of race, white privilege and the oppression of black Americans valid areas of concern, especially given recent efforts at suppressing the vote and gerrymandering black districts to the point of powerlessness. The Trayvon Martin case, far from making them tired of the issue, has in fact galvanized many into speech and action.