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.
“I was always the one left behind. Out in the streets, when they saw me they'd say, That's just one of the Bee Gees.”
“The lullaby is the spell whereby the mother attempts to transform herself back from an ogre to a saint.”