>> so I'm very open to proof that censorship of this content does not decrease prevalence of child abuse.

Well, I guess people who molest children do it because they like molesting children - not because they want to produce CP. Producing CP is in addition to an illegal activity they already do anyway.

But yes, I'd like to see proof on whether the censorship is doing anything here, I just don't know how anyone could ever do any research into it.