The idea that converting to a vegan diet is going to stop the ravages of industrialized agriculture is a rather crude pretense. One can't simply start drinking soy milk and make the world a magical place...or eat palm shortened fats, that's hardly sustainable.
Ideally we'd stop wasting so much food. The supply and demand economy makes food entirely too cheap and too wasteful.
Stopping consumption of meat and getting people to eat grubs and other insects for protein...maybe the way forward.
Want to change your diet for the sustainable? Be a freegan, eat garbage, because people throw away good food.
I think the bottom line is people are too ignorant and proud to skin an animal themselves. But going to the store dignifies the purchase. Going to buy vegan products...not exactly sustainable.
Go into nature, shoot an animal, fill your freezer...one lead bullet, a couple hours labor...99 cents for 200LBS of meat...hmm...pretty darn good to me.
Man has essentially taken the country lifestyle and made in a yuppy thing, everything local and crafted etc...We forget that the good life was the way of a commoner.
My grandma lived to her 90's...she ate butter and fats, I don't think she got her longevity from being on a farm, she was so poor that she would surround her house with straw and manure for heating...now you tell me if that is more sustainable than going vegan and turning on your coal fired heater...and she churned the butter and drank the milk.
We can't take the ideological high road that vegan or non vegan life is more sustainable and moral, until we allow ourselves to entirely deflate egos. Our planet is facing a big problem. All of the blame must go around accordingly.
It's easy...no cars, no computers, no petrol living...not today, not tomorrow. The ice sheet is melting and the methane is going to turn earth into a nightmare within the next two decades.