Raistlin--
Redneck - first you argue that we can eat animals because we're superior, now you're arguing that we can do it because other animals do it. Which is it?
As mentioned above.....
Actually, I was rather careful to differentiate between "by non-human mores" and "by any human moral code". For animals, it's fine to kill other animals and eat them. For humans, it's also fine. Animals are different than humans, and thus we have different reasons than they.
Jrgen--
Wrong. Completely false. If you say that the sky is green when it's really blue, then you're wrong--it's not green for you and blue for me, it's blue and you're wrong. Likewise, if you say that, for the most common example, murder is not wrong, then it's not fine for you and wrong for me--it's wrong, and you're incorrect. It may be people in certain "surroundings" don't see something as right or wrong, but reality is what it is, not what people would like it to be or claim it is.