I don't think veganism and vegetarianism are simply for animal rights issues (consider the energy issues, health issues and environmental issues)
check this essay by Bookchin
Some may hold the idea that anarchism is simply a workers movement (which I respect). I believe that anarchism is an ideal used to give the framework and inspiration to people in order to rebel against and ultimately reform, or better yet, extinguish state system of power whether it be Marxism, Fascism, Stalinism, Capitalism, Socialism etc etc.
I personally believe that the capitalist system that I am living under has been corrupted and abused to the point where I would prefer an anarchist system (however that would look) until something better came along.
What I feel my part should be is to play an active roll in bringing that system down, by the very least, non-participation and non-support.
Some of the major players in coporate culture are the state subsidized meat and dairy industries. Massive lobby groups influence government to spend millions if not billions of tax payers dollars on these huge corporations. The amount of money it costs to pay for the energy to put a steak on someone's plate requires state subsidies otherwise it would be far too expensive for the average person's pallate.
I also believe humans disregard for animal life stems from the Judeo Christian belief that the good ole G-O-D put them (along with everything else) on this planet for us to use as we need. I have the same disdain toward the church as I do the state therefore obviously I can't believe this.
As for the topic of hierarchy between animals and humans vs animals and animals in the natural world, I believe that the realtionship between humans and animals have (in the western world especially) nothing related to the food chain in nature. I have been a vegan for a decade and if for some reason I was caught in nature and had to hunt, kill and eat a deer in order to survive, I would do it in an instant. That woud be playing a role in the hierarchical food chain as a lion does. However, going to the grocery store and buying a state subsidized, manufactured, heavily advertised piece of meat is the futhest thing from nature and anarchism in my opinion.
So I guess I just answered my own question - an anarchsit / carnivore under natural circumstances is not an oxymoron.
If we're going to get rid of hierarchy with animals then logically we'd also have to eliminate hierarchy between animals. So, lions couldn't be allowed to eat other animals. It would become a moral duty to stop a lion who is attacking an antelope.
using that logic - animals in nature do lots of things we as humans find unexceptable within our species and amongst other species. It is a well known fact that mating rituals amongst animals can be very hierarchical and often extremely violent. That is all part of a natural hierarchical system, and although I don't believe it is morally correct for humans to be involved in the same violence or mating rituals amongst each other, that doesn't mean I need to hold any moral obligation to stop it amongst other species. These are two seperate issues, just as the issue of complete domination of a species by another and a heirarchical system between two or more species are serperate. Therefore we can put to an end one without necessarily having to the other.