I think all people are precious on existential grounds, but that rights are posited by powerful fictions. Objectively, there's no right or wrong, although in some of my writings I attempt to reconstruct morality on aesthetic and pantheistic grounds. I think certain aesthetic values follow from a scientific account of the objective facts of nature. Still, science itself is blind to rights, so we'd need an existential, philosophical perspective to appreciate them, and that perspective would deal more with stories than with objectifying models.