Catherine Mackinnon said this quote

“ What is the bottom line for the animal/human hierarchy? I think it is at the animate/inanimate line, and Carol Adams and others are close to it: we eat them. This is what humans want from animals and largely why and how they are most harmed. We make them dead so we can live. We make our bodies out of their bodies. Their inanimate becomes our animate. We justify it as necessary, but it is not. We do it because we want to, we enjoy it, and we can. We say they eat each other, too, which they do. But this does not exonerate us; it only makes us animal rather than human, the distinguishing methodology abandoned when its conclusions are inconvenient or unpleasant. The place to look for this bottom line is the farm, the stockyard, the slaughterhouse. I have yet to see one run by a nonhuman animal. ”