If I have a hillside that isn't being used for anything else, than fair enough, I could throw a couple of sheep/goats on it and later reap the rewards.
I'm not sure how many of these romantic pastures continue to exist though. I live in a green fertile valley, where sheep farming is rife. The sheep get additional feed on top of their grazing. I'd prefer acres of trees or some other arable crop instead. Sadly most of us won't ever get access to the land to do so.
Less than 1% of the population owns 70% of the land, running Britain a close second to Brazil for the title of the country with the most unequal land distribution on Earth. - http://www.theguardian.com/commentisfree/2012/dec/17/high-ho...
Also, is it possible that grain farming is worse for the planet in some circumstances and better in others? I am sure that a small rice paddy is much better for the environment than a barn full of chickens in cages too small for them to stand up.
Grain and legume farming kills massive numbers of amphibians, birds, and rodents, with huge knock on ecological consequences. When you slaughter a pastured cow or sheep it's one life. During their lives the hooved animals serve a vital role in grassland ecology. The 1930s American dustbowl desertification happened in substantial part because of the preceding elimination of bison and steer.
> a barn full of chickens in cages
If chickens are caged in barns they're eating mostly grain. Historically normal chickens ran around outside and ate mostly bugs, in season.
Europeans decimated the Americas for their corn fed fatty marbled cattle. The rainforests are being cleared for soy, as with most arable crops a high percentage are grown as animal feeds. So there isn't any escape. Eating a cow has collateral damage too.
Take a fraction of those arable crops, don't bother meat farming and move over to better farming methods that are more in tune with nature. It's a balancing act.
If you haven't any ethical qualms about meat eating then you can still farm those fringe places pastorally - reindeer, goats, kangaroos etc.
I still think there's better use for that land than raising cattle on it. I can't help but think that good meat is reserved for the luxury of a few, that includes well raised organic meats. It's only the wealthy people that I know that can afford such.
Are you claiming cowboys are herding cattle in the streets of Manhattan? Or "everyone" wants to move to a cattle ranch in the middle of nowhere in Texas but they just don't know it yet? You could work your argument either direction but I don't think either will work very well. Farmers and ranchers like money just like anyone else. If they could subdivide their land to city slickers at SFO/SV square footage prices I think they would...