The reason I mentioned wild vs livestock life is because I think people are fooling themselves when they believe the average animal who lives in the wild has a worse life than the average animal in the ag industry. You are choosing to focus on the moments before death which is just a fraction of what an animal experiences, and is assisted by natural endorphins. A life of persistent confinement, abuse, and building trauma is worse than most pain imaginable, I'd rather be flayed alive when my time comes than have to live as a typical industry pig does for even a few months.
And lets not act like livestock are even afforded a quick death, often being shipped to a remote site and corralled into a place full of the smells, sounds, and sights of death. Working in slaughterhouses often causes humans trauma and they aren't even the ones on the chopping block. And that's if you're lucky, most pigs are collectively slaughtered in gas chambers.
Enough of what was supposed to be an aside though. The point is that you can make a choice to not participate in a system of enslavement, torture, and killing. It has nothing to do with what lions do, and you wouldn't use lions to justify other awful behavior.
Even hunting is wrong. Even though it doesn't bring all of the terrible living conditions from animal ag, it's still ending lives that you don't have to. That's really the point, we have a choice, so we have a moral obligation. Taking a life when it isn't necessary for survival is wrong in most cases.