If I had been in a position to design and create a world, I would have tried to arrange for all conscious individuals to be able to survive without tormenting and killing other conscious individuals. I hope most other people would have done the same.
Jeff McMahan, stating what should be obvious. And even more bluntly:
Our factory farms, which supply most of the meat and eggs consumed in developed societies, inflict a lifetime of misery and torment on our prey, in contrast to the relatively brief agonies endured by the victims of predators in the wild. From the moral perspective, there is nothing that can plausibly be said in defense of this practice. To be entitled to regard ourselves as civilized, we must, like Isaiah’s morally reformed lion, eat straw like the ox, or at least the moral equivalent of straw.
These both form part of an Opinionator essay which concludes that we “have reason to desire the extinction of all carnivorous species”.