It is ethical to eat meat as secondary consumers

Question: Should you go vegan?
Position1 of 2›: Eating animal products is ethical
Argument1 of 5›: It is ethical to eat meat as secondary consumers

It is only natural for us to eat meat, as we are 'secondary consumers'.

The argument

We hold a specific position in the food chain. As secondary consumers, we eat other animals and maintain the balance needed in the food chain. For more than 60,000 years humans have eaten animal products. Eating meat is a natural process that we as omnivores are supposed to carry out. Cooking meat actually proved to be a huge factor that lead to further human evolution - studies show that it caused a significant increase in our brain size.

Premises

[P1]As secondary consumers, humans occupy a place in the food chain where eating other animals maintains its balance. [P2] Humans have eaten animal products for more than 60,000 years, a natural process for omnivores. [P3] Cooking meat was a major factor in human evolution, driving a significant increase in brain size. [C] Therefore, because it is natural to eat meat as secondary consumers, eating animal products is ethical.

Counter-arguments

Just because something is natural it does not mean it is ethical and that we should still do it. We cannot look to nature for moral advice as nature can be wrong and twisted in our human perception of what is moral. Even if one were to accept that all that is natural is therefore ethical one can argue that; It is not natural as we are primates. Of the 633 species of primates humans are the only ones who eat meat (chimpanzees too on occasion). Eating meat was an evolutionary fault rather than a natural process of evolution. Furthermore, while other animals eat each other as they need to for survival, humans eat animals not out of necessity but merely because they want to. That is wrong

Rejecting the premises

[Rejecting P1] It makes no sense to do something simply because it is 'natural'.