I can certainly find value in your approach. Also, I wouldn't say that high-production chicken farms are advancing the well-being of the chicken. But my hens locked up in their spacious coop and run seem pretty happy. I see it like dogs. working dogs, retreivers, toy, they all are looking for different things. That doesn't make one worse than the other. My chickens definitely would not be happy trying to survive on their own, much like a lap dog would not like having to pull a cart.
My view is based more around what is likely to be good for the chicken as a species in the long term and hatchery raised birds kept in cages is most defintely not.