OK- let's try an answer to this point.
Simon: Google Shulin dog meat festival. Disgusting.
Your viewpoint and mine. But friends of mine believe that killing any animal is wrong. But , likely, we (humans) are still dependent on some complete protein foods in our diet. Whether people make a festival or not (I'm thinking of duck-hunting) is often dependent on their own local traditions.
Simon: Do multi-storey buildings make up for it?
You could see that process as part of the change from a peasant society to what we call modernity.
In what we call modernity, there are choices. In the agrarian societies which were most common in the past, there was little choice. Both your ancestors and mine knew hunger (if your forbears were commoners).
Even for my parents, food was a major expense. As a kid, I trapped rabbits to help the family budget. The steel-jawed trap is an instrument of torture, and leaves the rabbit alive in agony. I killed them when I caught them with a hard hit to the back of the head with a steel bar. OK then, but likely not today. My kids called me a brute when I told them my stories of rabbit trapping. (I also made useful pocket money from skinning them and selling the skins)
The buildings I'm discussing are part of the complex lives we lead that allow choice as to occupation and food. I'm sure you see that?