What a great post! I am a hunter and I had similar feelings you had killing game. The one thing I like about hunting is that it is open range, hormone free, 100% natural food. Killing and butchering an animal is also a valuable skill set.
When I lived in the city years ago it was in a poor immigrant neighborhood that did urban farming (chickens and pigs mostly) out of necessity. It is good to hear this practice is catching on. I think knowing about your food whether it be hunting or farming is deeply fulfilling, spiritual, and educational which leads to a greater appreciation of your food and the environment.