IckleMissMayhem said:
Hate to break it to ya (well I don't really, but everything sounds so much nicer when you begin a sentence with those few words) but you don't know at all what's "natural" and what isn't. In fact no one can make such a claim, because any behaviour observed in humans (yes I do mean ANY) is inherently natural.
In fact it is both logically and physically impossible for human beings to do anything objectively "unnatural". Hence, refusing to eat meat is just as "natural" as actually eating meat.
Claiming that you can actually make a distinction between natural and unnatural behaviours or phenomena is per definition a false claim. Every living thing on this planet (humans included) can trace it's origins back to nature, in fact we didn't actually stop being a part of nature at all, and nature/biology as we know it can in turn be traced back to that endless chain of cause and effect which makes up our reality, past, present and future. And neither nature, biology or cause and effect have any proven goals or motivations for their existence.
So if you say that one behaviour is unnatural, that implies that you actually have an understanding of what nature "wants", which is impossible, becuase there are no scientific evidence that natura actually wants anything or even if it's capable of wanting at all.
Reason, purpose, goal, function etc. these are all concepts invented by humans as a way to reflect over and communicate about our surroundings and why we do things. Nature never needed these concepts. Nature was around way before humans were and could exist just fine without said concepts.
So neither you nor anyone else can prove that it's natural to eat meat, nor that it is unnatural to refuse to eat meat. We can, at best, only observe nature, but never really comperhend it.
So if you want to make a point, I suggest you find better arguments than arguing that something is "natural" while something else is "unnatural", because that argumentation is completely moot since no one will ever be able to prove any sort of distinction.
Until we have fully objective evidence to make that distinction, refusing to eat meat is just as natural as eating meat.
You're in for a seriously difficult task if you're going to attempt proving how human beings could possibly do anything unnatural...