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.
How is it invalid? if it wasn't for eating meat you wouldn't be typing right now on this forum this is a fact, also consuming meats is not only about Proteins, but calcium, enzymes vitamins such as B12 ect, while yes you can mix several vegetables to by pass meat, the fact is, meat is the most naturally occurring, well balanced and easily obtained and digested package of proteins, essential acids and source of iron and Vitamin B 12 that you can find. Somehow you must find and consume all of the things that meat provides so that your body can stay healthy. A meat based high protein diet is good for you. Even vegetarians are realizing they need meat in their diet (according to the power of meat website lol).
If we follow the same logic, why would you bother eating vegetables, when you can make all the nutritions you need artificially/chemically it doesn't make sens at all, also what doesn't make sense is the reply of the guy who's been claiming that being a vegetarian makes you smart that triggered my initial reply which is by any objective metric you can find it is not true.
Humans needs a balanced diet, meat shoudn't be abused, nor some types of vegetables, balance is the key