"The message is clear. Boys are the norm, girls the variation; boys are central, girls peripheral; boys are individuals, girls types. Boys define the group, its story and its code of values. Girls exist only in relation to boys."
"The Smurfette Principle" is the name of an article written by Katha Pollitt that was published April 7, 1991 in The New York Times. The article is about how children's entertainment shows appear to be mostly designed for the male demographic, due to the fact that there is only one female character among the main cast of mostly male characters within a show, as in the case of the Smurfs, which unfortunately became the reason for the article and its related TV Trope name.