Okay but there's a moral hierarchy when it comes to eating meat. Humans used to hunt, meaning we would kill animals that lived natural lives. Not to mention, we would typically target animals that were older or sickly, because we would have a harder time killing animals that are in their prime.

That's so much different from modern day agriculture practices. We raise animals in fences so tight they can't turn their heads, and feed them nasty stuff. We abuse the shit out of them until they reach the point where we deem them the most profitable then we kill them. There's nothing natural about that.

Also, it's really hard to know for sure, but we have a good amount of evidence that humans didn't eat that much meat. First of all, the animals we hunted wouldn't be nearly as fat as the animals we eat today. Secondly, there's evidence that many humans ate roughly 100g of fiber per day, which is not possible if you had any serious amount of meat. Humans ate a lot of plants. 100g of fiber is an insane amount of plants.