Speciesism is morally objectionable because, like racism, sexism, and heterosexism, it links personhood with an irrelevant criterion. Those who reject speciesism are committed to rejecting racism, sexism, heterosexism, and other forms of discrimination as well.
Gary L. FrancioneTo say that a being who is sentient has no interest in continuing to live is like saying that a being with eyes has no interest in continuing to see. Deathโhowever โhumaneโโis a harm for humans and nonhumans alike.
Gary L. Francione