I agree about banning Margaret Atwood - the woman is both incomprehensible and proof-positive that there is no intelligence in intelligentsia.

As for the others: Shame on them for allowing their limited sensibilities to determine what and how our children should learn. Excluding such things from the educational process prevents them from receiving a broad-based and well-rounded education. It also helps them to form opinions based on prejudice and ignorance rather than fact and a careful, detailed review or comparison.