This is a really well written article! And I can tell you are passionate about whats the best course of action.
I think animals deserve good living conditions, and that some are definiteloy teated poorly. But we need agricultural animals to improve soil diversity (the bacteria and living micro life in the soil). There is however a huge carbon footprint from livestock, not only must they eat a lot of food they also have to be transported etc which adds to the already large amount of CO2 we add to the atmosphere.
We will see how humans approach this issue in the next ten years. It will be interesting.