If anyone else has ever asked that question, I haven't seen it.
If the archeologists/historians are to be trusted, animals have been domesticated for millennia, longer than people have lived in cities.
One species, sheep, have nearly zero ability to survive outside of human protection. What would happen to the species if they were left to their own devices?
I have seen this question raised before, and in fact discussed it with somebody in the comments to this post. To me, it has always been the most compelling argument against 100% vegetarianism, though I can see the other person's point that our appetite for meat in the West probably does more harm than good.
I don't know what PETA's answer would be, though.
Well, like I said, I couldn't imagine nobody had thought of it before.
But I think whatever the response, PETA's description of what animal rights are is meaningless. "[A]nimals deserve consideration of their best interests" is a contentless phrase.
Speaking about animal rights activists, I heard somewhere that some of these people visited a college and told the students to drink alcohol instead of milk. Because milking hurts the cows. Yeah, ummm, so are we sacrificing our health for a pain free life for domestic bovines?