Comparing a wolf killing a sheep and what is outlined in this Post is ridiculous to say the least.
The sheep had the free will to be there and there was a chance of it escaping. But for the slaughtered animals they have no choice. Everything in their life is predetermined by us. If they live or die, if they get to walk or stand in one place for the whole duration of their life, if they get to keep their offspring next to them, any and all aspects of their existence is in our hands.
We must not also forget here that a century ago there were a group of people just like you and me called "slaves" who also did not have RIGHTS. Looking back we can see the evolution of that scenario.
RE: Vegan Anarchy: Do animals have the right to life, liberty & the pursuit of happiness?