Yes, I understand, and I'm not trying to shame anyone for eating meat (I eat meat, just not very often). All I'm pointing out is that there isn't yet a very strong ethical argument in favor of meat consumption. None of these animals are engaged in ethics, and I tend to agree with David Hume in that ethics has some prerequisites which they all lack, making this a uniquely human issue.

At the end of the day we're all animals and our behavior can't be fully dictated by logic, ethics, or evidence. Regardless, I think it's important to understand when we're acting in a way that doesn't have any real justification even if we go ahead and act that way sometimes.