I'm interpreting this article to mean that if I don't want my child to be prejudiced, I need to expose my infant to "other-race" faces from birth.
I'm also assuming it really means is that parents ought to expose the infant to a variety of complexions, both light and dark so that the child won't develop a preference for one over the other. Many AA families have a wide variety of complexions in them already. Most white families do not, so this is something those of them who value diversity need to concern themselves with.