Aww, he thinks amateur porn is real, and not it's own profitable and fake genre. That's adorable.
The way you describe yourself sounds like you read a lot of red pill/black pill/incel/mgtow/mra bullshit. The precise phrasing of your personal assessment is just uncanny in comparison to that on those kinds of internet swamps. That, and the misconception of pornography. The manosphere is a toxic cesspool, and best avoided.
You seem like a swell guy, so here is some truth for you. I don't usually get to pick a penis. I only get to pick a man, and his penis comes along for the ride. Personally, I want to come early and often, and as long as that's happening, I feel quite satisfied with the sexual aspect of the relationship irrespective of size. If it fits, it ships, just like the post office.