Kuroman, your argument is invalid. Eating meat triggered evolution because it was the most available source of complete proteins and nutriments for our ancestors, thus giving us an advantage over herbivores. However, there are alternatives which are just as good now, less wasteful, and more ethical.
I haven't read the whole thread.
Hopefully by now someone mentioned how wasteful modern meat production is.
The amount of water and grain used by cattle is staggering.
+1. Add to that soil and water pollution caused by having a huge amount of animal in the same space.