Because it’s speciesism. If we started giving birth to humans to eat them, that would be absolutely outrageous, but to do that to animals seems perfectly fine to most people. Animals have the same desire as we do not to be killed or abused, and to live a happy life.

This argument also implies that “dominionism” is wrong, i.e. all life has a right to not be killed or abused. Yet human life is impossible without killing and consuming, other living organisms, be it plants, animals og fungi. Thus it is unethical to continue living.

This argument is bad, because for human life to be possible, you must draw the line between life that you consider ethical to kill and life that you consider unethical to kill.

This is kind of a straw man argument. I don’t feel guilty at all eating a carrot I pulled out of the ground.