The experience of witnessing the first black President in the history of the United States has indeed been a wonderment to behold. As it turned out, the grand old white establishment revealed itself to be petty, obstructionist, vindictive, and incompetent. History will remember them as such, to the extent history will remember them at all.
But that's not the main reason parts of Black America are upset with her. People are upset that she CHOSE to live as black woman, and she can CHOOSE to live as a white woman with all rights and privileges restored while everyday black folks can't shed their blackness in favor of being white for a day.