Especially with environments where anyone can upload anything without proof of consent. Essentially you have a system where producing and distributing this regardless of consideration is maximized. However, even if pornhub et al. required proof of consent for every video it would still likely lead to many situations where the actor was "willing" for bad reasons which will play out over time with an increasingly negative effect.

As I get older I'm expecting more and more to have a future generation look at our with quite a dark opinion.