You don't have any satisfactory answer to the clear fact that causing animals suffering and death for food, clearly is inflicting on them unnecessary suffering?
Animals are conscious individuals:
One quote: "The one historical constant in my field is that each time a claim of human uniqueness bites the dust, other claims quickly take its place. Meanwhile, science keeps chipping away at the wall that separates us from the other animals. We have moved from viewing animals as instinct-driven stimulus-response machines to seeing them as sophisticated decision makers. "
"An international group of prominent scientists has signed The Cambridge Declaration on Consciousness in which they are proclaiming their support for the idea that animals are conscious and aware to the degree that humans are — a list of animals that includes all mammals, birds, and even the octopus.
There is plenty of evidence that animals are feeling suffering."