This video is really, really worth watching. TLDR: Jay Smooth makes an analogy between race sensitivity and oral hygeine. "Not being racist" is more like brushing your teeth than like getting your tonsils out. Our (<i>all</i> of our) prejudices are strong and reinforced 99% of the time just by absorbing the majority culture that we live in. Cultivating sensitivity toward minority groups, then, is akin to brushing your teeth every day.<p>...and it's basic civility, not rudeness, when you point out to someone that they have something racist/sexist in their teeth.