In the mean time, I think this is the wrong way to try to solve the issue. Raising a few chickens is not a big deal. I live in rural Michigan, many of my neighbors have chickens with no real environmental impact and not much cost at all.
All of the problems come from industrialized livestock practices. If we simply outlawed those practices, and/or put huge taxes and tariffs on the products the issue would solve itself (in that the monetary cost of meat would reflect its real costs, and consumption would drop accordingly.)