Earlier quoted context omitted.
To me, it's less about new products and more about people's tastes. People are eating very different things now because of new popularity in some cuisines (Indian, Thai, and Mexican come to mind) and the popularity of "superfoods" (Avocado, Acai berry... ever notice there are never any animal-based superfoods?).
Ahh yes, these super-foods that get transported half way around the world for us to consume. Much better for the environment.
Energy wasted on growing plants that feed humans directly is feeding a 1st order process. Energy wasted on growing plants that feed animals that feed humans indirectly is feeding a 2nd order process.
Animals need to keep their body warm, grown their body, have immunity, give birth, grow offspring inside their body and then after all that they give you milk and meat.
Incomparable.