This might be my perennially adolescent inner child speaking, but I enjoy many if not most parts of nature, including predation. A pack of lionesses chasing, attacking, and killing a wildebeest is badass to watch; obviously I would have very different thoughts were I the one being hunted!

Your argument sounds like some forms of the rationalist suffering-minimalization ethic, which manages to convince itself that literally paving over the planet would be a moral good because it would prevent the suffering of living things. This is difficult for me to parse, as is the moral framework underlying your views. Where do you locate moral good?