May I point something out Cute Wolf? It is impossible to have this discussion the way you want without religion. Religion defines the world as something created and owned by someone else, so we need their permission to use what is theirs. If you do not believe in religion however, and we evolved or just are here, then everyone is his own, and either you believe in breaking the sanctity of somethings life or you don't. Do you get what I am saying?
I am a Christian, and God gave man full stewardship over all the earth, so I believe that it is not only mans right but also his responsibility to manage the earth. (Would a good steward of a house not dust the house? Or a good steward of the field not sow, weed, and reap?) What restrictions God puts on eating those animals is beside the point, as we are their stewards and have the right to kill them, skin them, or whatever else we want that does not violate God's laws.