> The concept of inalienable rights does not require supernatural powers for validation.
Sure, it can stand as a moral axiom on its own (and, heck, even when it is used in the context of a supernatural power, that's not really a logical validation/justification, simply another element of the story, and they still are independent moral axioms.)
OTOH, it makes the fact that they are moral axioms and not grounded in anything else a bit more obvious than the "God says so" version. Its pretty easy for people to reject bare moral axioms that other people offer.
Sure, it can stand as a moral axiom on its own (and, heck, even when it is used in the context of a supernatural power, that's not really a logical validation/justification, simply another element of the story, and they still are independent moral axioms.)
OTOH, it makes the fact that they are moral axioms and not grounded in anything else a bit more obvious than the "God says so" version. Its pretty easy for people to reject bare moral axioms that other people offer.