I'm killing an overpopulated native animal that doesn't waste water, arable pasture, or add methane to the atmosphere.Whether or not one chooses to kill animals has zero affect on how we raise our food.
You're not killing a stockyard animal humanely....you're killing an additional animal.
You choose to kill an animal because you want to do it. You don't need to do it for meat (at least if you live around civilization).
Would you prefer I take my bloodthirsty tendencies out on people? Cuz the government taught me to shoot strangers in foreign countries while dressed up like a tree when I was eighteen and I'm good at that too. And people taste like pork.