also I am going to point out that the human body is designed to hunt and eat meat, sure you can compensate, but we are preditors,
This isn't
entirely true. Consider the following:
You are a four foot tall, half-naked ape-like creature. You have fingernails instead of claws; your teeth aren't very sharp, having been designed for a more herbivorous diet; and to top it all off, you lack the reflexes, running speed, body mass, and raw power boasted by potential prey and predator alike. You do, however, have an impressive brain, opposable thumbs, and a throat that will eventually develop the tools needed for complex verbal communication. Having said that, it will take hundreds of thousands of years before these things allow you to procure meat reliably.
Humanity's hunting capabilities are far from instinctual; we weren't born knowing how to fasten weapons, build traps, or track animals. We had to
learn how to do all of that. Even today, we rely on the technology we've developed to take down prey that could kill us very easily (like moose), or that are too fast to catch on foot (like rabbits). Of course, hunting is more for sport now, since you can just run down to the grocery store for all of your meat-related needs.
If I recall correctly, modern anthropological theory believes that early humans relied on a diet consisting mostly of fruits, nuts, roots, and other vegetation. Without the right technology, hunting would have been dangerous and unreliable. This means that if early humans ate meat, it was because they found and secured whatever other animals left behind. Even then, this would have been dangerous, too, as we would have been in direct competition with other scavengers / predators looking for a free meal.
This isn't to say that we "shouldn't" have eaten meat, though. By the time we were effective hunters, the benefits of hunting (more food, clothes, bones for tools) would have made foraging nearly obsolete. Nomadic lifestyles would have made foraging harder, too, as new environments would have exposed us to unfamiliar vegetation, and it's not like we would have automatically known what was poisonous or good for us.
And of course, to develop an an agricultural society, we would have had to know how to farm; just like hunting, farming techniques would have taken hundreds of centuries to develop. Agricultural societies would have also been unique to, what, the Americas, and some parts of Africa / Asia? I can't remember the specifics, I just remember Europe being largely composed of nomadic societies. I could also be thinking of the Germanic tribes instead. Whatever, someone will correct me.
I've gone off on a tangent. Reigning it in:
tldr; Humans weren't
built to hunt, but that sure as hell didn't stop us. We developed the skills and technology needed to become good hunters. I'm not familiar enough with what Gato was talking about to be able to comment, but I know that hunting gave us clothes, tools, and and a ton of food very quickly. Hunting (and the consumption of meat) has everything to do with why we survived and developed the way we did.
Should we stop eating meat? I don't know, that's a personal decision. Meat is definitely not a necessity anymore and we have more than enough ways to meet our body's needs without having to slaughter animals. I'm not really familiar enough with all the ethical concerns in regards to this argument, though.