The NAACP believes the tea party is racist. The tea party believes the NAACP is racist. And Pat Buchanan got into trouble recently by pointing out that if Elena Kagan is confirmed to the Supreme Court, there will not be a single Protestant Justice, although Protestants make up half the U.S. population and dominated the court for generations.

Forty years ago, as the United States experienced the civil rights movement, the supposed monolith of White Anglo-Saxon Protestant dominance served as the whipping post for almost every...