I pretty much agreed with you until now, but I don't really do now...Is that why 92% of strict vegans have B12 defficiency and vegan babies keep dying for no reason? Yes, we do need to eat meat and animal produce, the only reason why vegetarians and vegans are even able to live in society today is because we've developed pharmaceutical (supplements) and dietary (processed soy, fungi, bean and nut products of all-sorts) methods of letting those bad eggs survive.
Evolutionary scientists and anthropologists agree that cooked food, meat and animal produce is what made us humans - it allowed us to supply our bodies with a sufficient amount of nutrients in an easily digestable fashion, made our mouths shrink, our digestive system shorten and our brains explode in size and neuron count. In contrast, gorillas who are stuck on a raw plant diet have smaller brains with fever neurons and have to forage for up to 8 hours a day - not a lot of evolving there.
http://www.livescience.com/24875-meat-human-brain.html
Even chimps, some of the smarter primates, are able to conceptualize and appreciate fire - they prefer cooked food to non-cooked food and will happily eat grilled meat.
https://www.theguardian.com/science...s-can-cook-and-prefer-cooked-food-study-shows
In conclusion:
Fire + Cooking + Animal Produce = Smart Humans, like myself
Foraging for nuts and berries like an ape = Stupid Humans, like vegans or vegetarians
If you don't eat meat, you're two steps below me and one step below a monkey. Let that sink in.
Yes, it's true that eating meat was crucial in making us have more neurons and stuff, and "become humans", but this doesn't imply that now we *must* eat meat. We surely *can*, but if someone doesn't like to be a cause of killing animals for eating, it's just their moral views. I only can't accept when someone implies that their moral views are "universal", and so that they're "right", and I'm "wrong".
And as far as I know, vegetarians have much less of a risk of B12 deficiency than vegans.
I don't see how not eating meat makes one "stupid" or "a monkey" (and monkeys aren't "stupid" in their own terms, we consider them as stupid because they can't do things we consider as important).