The human continuum with its cultural values is not necessarily one, and can’t necessarily be unified with its diverseness.
Every individual has the right to hold her or his own views.
Thus I can be for Animal Rights INASMUCH as I can be for Human Rights, for example.
No philosophical school can propose me their argumentation as valid IF it asks me to see nonhuman animals other than I see them now as an Animal Rights person.
Philosophy should stay out of attributing different “life forms” with their labels of value or meaning.
Otherwise philosophy becomes as bad as how religions function – as doctrines based on belief. Homoncentrists believe that nonhuman animal life matters less than human life, and they believe that the world relevant to nonhuman animals and the systems meaningful to nonhuman animals life must not be regarded as a complete world in its own rights in their own terms.