However, when it come to true depicted rape in porn written about adults, for adults, there is consensual agreement among all parties that what is going on isn't real, isn't advocating rape, but porn written about children is almost assuring people that sexual attraction to children is normal.

That makes absolutely no sense. Why would writing about one awful thing be totally okay and normal and the other one not be? They're both fictionalizations of things that are absolutely not okay in real life. You can't give one thing a pass but say the other one is taboo.

Either they're both fictional depictions or they aren't.