I disagree because, we're biased here. Be honest with yourself ... we're on a site that deals with penis size, and we're fully aware of the fact, about size, and even some have a fascination with it, or really dig seeing larger men in scenes with women, but for the ordinary folk around out there who aren't in our circle, dont know about this stuff, I cannot accept that big dick adult entertainment is top of the list in adult entertainment ... nah.
No idea what it is, but this is a fetish market if you think about it. Like some dig hairy men in sex, fat women, small women, you have older men and young women etc etc etc it goes on and on and on.
In the mainstream adult entertainment, like bangbros all the guys look average to large in my view, and they get scenes depending on what the agenda is behind it all. Just look at bangbros and see, they got shit loads of niches like big butts, milfs shagging, Latina, black men on white chic etc etc.
You can also check Killergram which is a British mainstream adult entertainment company, and they have many categories they film, and not all men are large, far from it.
Again, and I would have said big dick adult entertainment years ago, but when you think about it, where we are, our own views are biassed towards seeing the world as wanting larger men, and women preferring larger men ... this is not true, certainly not what I have encountered.