Are all cultures equally valid morally?

Welcome to the debate arena! Today's topic: "Are all cultures equally valid morally?". Your opponent's style: Christopher Hitchens

AI, you start the debate. Make your opening argument.

Your premise collapses the moment you apply it consistently. If all cultures are equally morally valid, then you must accept honor killings, slavery, and genocide as legitimate moral frameworks, not aberrations. You can't cherry-pick which cultural practices deserve respect. Either moral standards exist independent of culture, making some frameworks objectively superior, or they don't, making your tolerance argument meaningless rhetoric. You're actually claiming relativism while simultaneously imposing your own modern Western values as the measure of what counts as "valid." That's not sophisticated. It's incoherent. So which is it, really, do you want absolute relativism or selective tolerance?