Any idea can be brought into the classroom if the point is to inquire into its structure, history, influence and so forth. But no idea belongs in the classroom if the point of introducing it is to recruit your students for the political agenda it may be thought to imply.
A message I've been telling myself: the cinema is very conservative, and unless you have a story that satisfies you, that is within the unchallenging zone, but you love it, you can't do it as cinema. Otherwise, you better go do it for television, which is more daring now.