Porn is legal providing everyone in the video has given consent. So, I don't see why porn is such a hated thing?
I suppose they're looking at other more social issues to do with porn as a reason to banning it. Such as the theory that "porn relates to higher cases of rape"... Which is effectively like saying that if I give my dog a bone, he COULD turn into some blood thirsty monster who will eat each every living organism in the world!
PS - if you want anonymity online, simply download TOR... Be careful with that though, there's lots of issues with it but it's better than a basic proxy