...on this site you are...And I'm not talking about a few voices here
I should probably go ahead and admit that I am the kind of person who is not and will never be offended by excess cursing or excess sex or excess violence. (I think horror movies are funny, for example.)
Thinking about censoring someone else's ideas would never even figure into my thick skull, so the idea of other people wanting to do is crazy to me.
Don't want your kids watching/reading filth? Then control what they buy and pay attention. It's not like there isn't a whole genre of books specifically designed for kids/teenagers or anything. Don't want to read or watch it yourself? Then don't, no one is making you. Chances are good that the material wouldn't really be something you would be interested in anyway.
Maybe I just believe in self accountability. And believing what ever you want, but at the same time, not trying to force that opinion on anyone else.
As to the scenario that you posit, with millions rising up asking for censored books, I think equally as many would tell them to shut up and read the thousands of other books written with them in mind. Or they would tell them to act like an adult and skip over the bits they don't like.