Earlier quoted context omitted.
That seems like reductio ad absurdum. You could argue amorality in the specific case of you vs. the octopus, in the wild, but that's now how most of us get the octopus or other animals we eat. The instinctual human ability to mentalize about another creature's state of being is likely where our capacity to, for example, domesticate animals and keep them as a food source came from in the first place. That same ability…
Actually, I argue amorality in all things from an agnostic view. There is no such thing as a universal ethic. There is only force and its decay. For the general concept of animal herd vs people collective (effectually herd vs herd), this doesn't much matter. The best argument one can muster its that we, being rational, should preserve a reasonable food chain. The idea goes like this: A stable, sustainable food chain…
Why stop there? Why is continued living a good thing in the broader scope of the universe?
> Nothing here says that we should exclude from the food chain anything with an intelligence.
Then why not eat other humans too. If you do away with all ethics what argument do you have against it?
To deny that human emotion and feeling have any value is to deny the value of humanity.