When I was young I used to hunt rabbits, groundhogs and birds with a pellet gun and bow & arrow. Once in a while I'd be successful. Brought a rabbit home and my father made me skin it, life takes on a different perspective after that. Still it didn't stop me until one day when I saw a small bird at the end of the driveway. I picked up a rock, threw it, and in a one in a million shot I nailed it right in the chest.
The bird then went into convulsions and starting spitting up what blood it had and mercifully died a few seconds later. Something came over me right then and I felt truly ashamed. I picked that little bird up and buried it in the woods close to home. I wish I could say I never killed anything again in my life but I have fileted many a fish, sprayed many a wasp, swatted flies and mosquitos and almost certainly have accidentally killed many an insect and microbes.
I no longer hunt but I do enjoy fishing. I am a catch & release angler and a conservationist these days. It took a while but that tiny bird's death at my hands has finally impacted me fully. I don't feel great deliberately taking a life of any kind. I have developed a deeper respect for what I consider the marvel of the universe we live in. Billions of years in the making, myself included, life is too special to be taken for granted.
But I have to eat. Sorry if your a plant I like. Too bad for the cow also. Steak, smothered in mushrooms and onions, well you get my drift. Killing is necessary to survive and I'll restrict myself to that although I prefer not to do the deed. I suppose I could if I really had to. Not my cup of tea anymore but I realize that someone has to do it..... I think we all do.