Race is a social construction

This week, in sociology, we touched on the subject of racism. Racism doesn't exist biologically. It's nothing but a mere social construction that was developed in our society. The activity that really stood out was when African-American children were asked to pick between a white and black doll, and most of the time they would pick the white one because they claimed it was the "good" doll since the thought of "white is good and black is evil" is embedded in their heads. It breaks my heart how these children wouldn't realize that THEY ARE black, yet they choose against their color.