> Two people growing up in different places (not different cities, but different neighborhoods within the same city) have lived in completely different worlds.

The top comment doesn't care about that at all, skin color is all that matters. It's about group identity, not differences in backgrounds. They'd give Obama's daughter "a foot in the door" over the daughter of some white hillbillies that is the first in her family to finish high school. Because obviously: group identity is paramount.