OP is not entirely wrong.

I would rather jack off to a 10/10, who is on camera doing whatever sexual fetish I can dream of, than have sex with a girl any lower than a 7.

And many girls are boring in bed anyway. Lots won't do anal, which fine for a one night stand, but for a consistent fuk buddy or gf, sucks because it's cool to have variety to keep things fresh. Many also cannot deep throat or even give good head generally, won't do facials, don't know how to ride, etc. The list goes on. You also have STD risks, sunk time costs, often financial costs, etc.

Porn > meh looking girls. But it cannot compete with a hot girl, let alone one that is good in bed.