The headline of this Guardian piece, "The owners putting pets on vegan diets..." is telling. The animals are owned, i.e. enslaved. Is there any behaviour more anthropocentric/anthropomorphic than forcing animals to live by our ethic du jour? This denies the very existence of the animal.
But despite her enthusiasm for vegan dog food, Greek won’t advise owners to feed their cats a vegan diet. Dogs, like humans, are omnivores, meaning they can more easily adapt to a carefully planned plant-based diet. Cats, on the other hand, are obligate carnivores, which means their bodies are designed to run on meat.