Won't somebody think of the children?

Recently there's been a huge ruckus as livejournal has (inconsistently and hamfistedly) tried to rid itself of pedophiles and visual pornography involving minors. (EDIT: Which I think they're well within their rights to do, I just think they screwed up the execution) One of their more controversial stances has been to lump drawn pictures of fictional characters with actual photographs, calling it all "child porn". (EDIT: they didn't just ban both, they explicitly said they're the same) This attitude is not uncommon in society at large. (I say having read the justifications for Australia's inconsistently strict child porn rules)

This attitude bothers me a lot, and after much thought I've recently realised why. In short: these people have forgoten that child porn isn't wrong because it's gross. It's wrong because making it involves hurting actual children.
( ...and in not-so-short... )