The base on the argument is that an animal is self aware and experiences its life. If this is true, then the rest of your argument is solid. But then how do determine which animals are self aware or not. Why are plants assumed to not be self aware? They reach toward the sun. They bear offspring. Some say they respond to music and other stimulation. Shouldn't their sovereignty be respected as well? Then what of the predators? If we are aware of the atrocities carried out by lions against antelopes, shouldn't we intervene? And then the murder of grass by the antelope? Then only beings that sustain through minerals, decomposing material and sunlight should be allowed to exist in order to ensure no harm is done. Of course by only by limiting the aggression of the predatory creatures by protecting their unethical food sources. So to survive we need to develop mineral based diets and consume only plants that have already deceased without our interference.