This does not match the experience of my friends and relatives who live in rural areas. It's not like this meat is coming from the city. It starts out in the country, and it can be found there. I think it's likely that there are more sources than you think nearby you, and not at any more of a distance than you already go for many other things.
What? I grew up in a small town in the country and you get to know the butchers and farmers.
Now I'm from Canada where we have less in the way of factory farms, but all of the farmers I'd known preferred to have their cattle graze and chickens run the lot... that's the default.
(I know: as kids we used to sneak around the farmer's grazing fields and mess with the cow fences—see who could take the [mild] electric shock the longest by holding onto the wire...)
Maybe in places where they raise no animals at all—but I imagine that's relatively sparse in much of the continent. I'd have to look that up, mind you.
??? I just go down to Bud's Meats, a locker in our small town. Get half a beef or a pig and put it in my freezer, raised on pasture by local farmers. Hand-raised lamb by Lois on her sheep farm.