I guess I just don't see the "ethical" argument over hunting... It's neither "right" nor "wrong". It simply "is".
We may like to think we're "above" the rest of the animals, but I don't see that either. We're just more intelligent.
Like it or not, we are part of the ecosystem, not above the ecosystem. As such, anything we do is "natural". Maybe not good, nor bad. Just part of it all.
The idea of a "balance" in nature between predators and prey is simplistic. It doesn't work that way. It's feast or famine. The predators eat the prey, and when the prey is bountiful, so are the predators. When the predators become too bountiful, they wipe out the prey, and so wipe out themselves as well.