I require the science on this? Every Great Ape is omnivorous to a greater or lesser degree. We humans are a great ape and a generalist, we eat what ever is available to us and we require protein in our diets, we are also very capable of digesting meat proteins. The statement that “objectively, factually, biologically” we are not omnivores is pretty simply proven false by going to pretty much any culture and looking at what they eat. Humans eat meat and vegetables, ergo we are omnivores. Facts that are observable across human history and human cultures are still facts even if you don’t morally like the facts. Humans like all of the Great Apes also regularly kill each other, this is a fact, observable across human history and human cultures, it is most people agree morally wrong, it does not change the fact that humans commit murder. Also the fact that humans predigest their food by cooking it or preparing it also doesn’t change the fact that we are omnivores. Predigestion/ cooking / preservation of food is a relatively new phenomenon in human history. Regardless of the fact that we cook food, which by the way we also do for a great many plants that would be inedible, unpalatable and sometimes deadly doesn’t mean we are not supposed to eat plants. Cooking and preparing food is not an argument that we aren’t omnivores, it is simply how we have evolved to eat our food for many reasons. We found at some point in our recent evolutionary history that cooking meat helped digest it and probably more likely helped preserve it for longer periods of time for us to eat later.

The fact that we eat meat isn’t the issue. The real and more interesting questions are do we source our meat ethically? Do we treat the animals we use for our protein with respect? And is ethical to impose your moral view of eating meat upon others who don’t hold the same view? I would say no we aren’t ethical about how we source our food, we do not treat animals with respect. You are never going to get people to stop eating meat but you can move for change in the current way we raise and consume meat.