Schools are one of the primary places where political socialization takes place in a given society. They are indoctrination centers that reproduce the values of a culture. Most folks do not want to think of "education" in that way.
In "post racial" America this poses a dilemma: do you teach young people the truth about this country's history and the semi-permanence of the colorline? As an educator, do you discuss how American society is structured hierarchically and where race, class, and gender over-determine life outcomes?
It would seem that if you are a teacher at Delavan-Darien High School in Wisconsin, you should not dare to broach such questions.
Over the last few decades, there has been an Orwellian turn in American education. It extends from grade school to the university level.
What counts as educational content is being dictated by the logic of the capitalist marketplace, teachers are being subjected to onerous surveillance and harassment, intellectual freedom is being made subject to the political aims of outside actors, and the value of teachers is being undermined by destroying public unions, eliminating tenure, and forcing college professors into a permanent contingent labor force.
In total, the response to Delavan-Darien High School's course "American Diversity" is indicative of the impact of hyper-conservatism on public schools. Ultimately, the students (and by extension all of us) lose because they are not being given the critical thinking tools to be active, reflective, and engaged citizens.
Ideally, any controversy over teaching students about an obvious fact--such as how "race matters" in American society--should be dismissed as silliness.