Lauren Myracle, author of ttyl and Luv Ya Bunches, two frequently challenged books, writes about the phenomenon of Banned Books. She says that parents anger springs from fear. Grown-ups who care about what kids read aren't the enemy.
From Shelf Awareness: As 2009's number one most frequently challenged author in the country (Mom, cover your ears), I often catch flack for writing about topics that certain parents, teachers and librarians would prefer I didn't. Like what? Like a teenager kissing her female best friend, or high school kids drinking too much and doing really stupid things, or a discussion of the pros and cons of thongs.
I've also come under fire for writing (lovingly) about a fifth-grader who has two moms, as well as a boy who won't join the Boy Scouts because of the Boy Scouts' discriminatory policies. Biology gets me in trouble, too. For example, parents get all kinds of upset about a scene in one of my novels in which a 12-year-old girl sits down with a box of tampons and attempts to make heads and tails of the dense instruction pamphlet.
In grappling with issues surrounding censorship, I've come to the conclusion that the enemy--at least in part--is the inevitable us/them dichotomy that arises in discussions of intellectual freedom.