Why must we sustain by eating other organisms? Our body lusts for sustenance. Disturbingly obscene.
We mash what we have into tiny parts to be swallowed, and dissolved in the acid of our abdomen. We glutton and hoard what we don't need much of, indulging in what we should view as sad.
We envelop too much and that sustenance once used to sustain, is depleting our life battery, our mass grows making us not accepted by our own kind.