Yep. Totally. Except this:
The way incest is being used by these people is incorrect. They are stating that first cousins is incest, I know four married couples that are first cousins. They are stating that siblings from four different parents is now incest, how the hell that comes to be I have no idea.
I wouldn't even start to argue where incest begins and what's still OK. Once you go that path, you actually give your OK to the idea that some stuff should be censored. Imho, it shouldn't. Never. Ever.
Not even pedosexual crap. And if it is, the first book that should have to go down the gutter is the oh-so holy bible.