I think the "extra special" boundary is called reality. You can film as much rape/murder porn as you want, but if you film an actual rape or kill one of the actors(snuff film), then that's illegal- obviously. I can play Murder Sim 2021 all day, every day and not feel the inclination to take someone's life for real- I assume it's the same for other fictional depictions of otherwise horrible acts.
We seem to have no problem creating boundaries for regular porn. I guess cartoon porn is just extra special.
I think the "extra special" boundary is called reality. You can film as much rape/murder porn as you want, but if you film an actual rape or kill one of the actors(snuff film), then that's illegal- obviously. I can play Murder Sim 2021 all day, every day and not feel the inclination to take someone's life for real- I assume it's the same for other fictional depictions of otherwise horrible acts.