Quite honestly Nader had a point when he stated that Barack has not aimed his message at the working/under class. His message has been completely directed towards the middle class. It is a legitimate critique to point out that once elected Obama will be beholden to those that helped him gain power.
Where Nader went wrong was in his usage of the phrase uncle tom. To use such racialized language on the night that the first African American became president was to engage the racial divide in a way that was demeaning to blacks. It seems that even as blacks where celebrating a historic victory there were those that sought to remind us our place.