Again, you don't have to convince me. I eat meat too. I agree, meat calories are higher quality for a variety of reasons -- you don't need to argue this point

Again, you don't have to convince me. I eat meat too. I agree, meat calories are higher quality for a variety of reasons -- you don't need to argue this point to me. My point is that these reasons are not essential reasons. You can survive without Taurine, Creatine, Carnosine because they are all synthesized by the body. Is it preferable to supplement with them in a diet? Yes. Are there more than a billion vegetarians on earth who don't supplement these? Also yes. We can and should accept both of these facts: 1) Meat is a better calorie source. 2) Meat is less efficient in terms of energy consumption and this is a problem. You can't disprove #2 by arguing about #1.