The vagueness of DeMentis's censorship of course discussions of racism is causing disputes about showing students anything about the subject.

Given any presentation about racism, people can contrive a way to conceive of it as teaching something bad. For instance, Ruby Bridges is about a black child who needed guards to protect her from racists in her school, back in the 1960s. That is meant to teach students the same age today what racism was like; but how can you prove it isn't teaching that all whites are evil?