How old do you think the women on pornhub are? What makes them more acceptable to look at over the women on instagram? I mean if we're talking about dudes perving on private social media accounts of 15 year olds, yeah of course that's fucked up. But that isn't at all the implication I got here, rather I assumed he's talking about OnlyFans models and other young women (not girls) who are offering their looks as a product, like Yellz0 or Kaitlyn Krems. In that case, this is extremely normal, and not really any different than the nearly 100 years of Hollywood; or did you assume the beautiful young starlets were only meant to appeal to their age peers (despite being cast and promoted by primarily older men)?

Hollywood, magazines, art, sales catalogues, and pornography; they are all selling the sexual appeal of young adulthood. And so long as the men and women being gazed at are willingly and consensually offering the display of their body, and they're of legal and intellectual ability to consent, then nobody is being wronged here, and nobody is behaving abnormally. These women deserve respect (as do the women on pornhub, to be clear; I'm still trying to understand what separates the two entities to you), and stepping over established boundaries, personal or social, is not okay obviously, but assuming the caveats I've outlined, I see nothing disrespectful about buying what somebody is willfully selling.

As for the age gap.... look, we can pretend to be this perfectly evolved species of always equitable and simple moral choices while ignoring literally the whole of human history which heavily implies an attraction in humans to young adulthood that doesn't seem to wean with age, or we can accept reality for what it is, warts and all. Personally for me, I just don't see how infantilizing young adults as if they are helpless children in need of constant coddling and viewing every relationship as an inherent competition of power and experience where any imbalance implies irreconcilable differences benefits us as a society.