What people forget is that it's not only whites who CAN be racists. It's a two way street. Just listen to the likes of AL Sharpton, Oprah Winfrey, and Obama to name but a few. They thrive on the division of people; they perpetuate racism.
... In which my heart breaks as I remember Robin looking at Barney and shaking her head just the tiniest bit and the look on his face as his chance at happiness shattered around him in one awful, eternal second.