I think the decline of moral argument and the rise of this general "anything goes" attitude has been a negative for society. We have to decide to draw a line somewhere. Even porn companies that feature of-age performers are highly exploitative and uncomfortably close to human trafficking - see the case of Girls Do Porn, and they're just the one that got caught doing it.

I don't think it's unreasonable to argue that some sexual behavior should be considered "bad" - voyeurism, selling yourself for money, extreme fringe interests/fetishes, etc. I don't buy the idea that Pornhub is just an innocent business trying to run their website. They have built an empire on human exploitation.