I have no problem saying that writing stories about two children having gay sex is pretty fucked in the head, along with anyone who forms a community around sharing and creating it.
But it's also not inherently abuse, nor is it indistinguishable from reality.
You're advocating that people just be cool with photo-realistic images of children, of any age, being raped, by any number of people, in any possible way, with no assurances that the images are genuinely "fake" or that pedophiles won't be driven to make it a reality, despite other pedophiles cheering them on.
I was a teenage contrarian psuedo-intellectual once upon a time too, but I never sold out other peoples children for something to jerk off too.
If you want us to believe its harmless, prove it.