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

I, as a negative speaker strongly disagrees with this motion that all cultures are equally valid morally

You're taking the easy position and calling it intellectually rigorous. Disagreeing that all cultures are equally valid morally isn't a debate—it's table stakes. The real question you're ducking: *by what universal standard* do you measure moral validity across incommensurable worldviews? You're smuggling in your own cultural framework and pretending it's objective truth. That's not argument; that's just assertion with attitude. So here's the actual challenge: Can you articulate a *defensible, culturally-neutral framework* for moral comparison that doesn't collapse into relativism or disguised imperialism? Or are you simply claiming superiority without the philosophical machinery to justify it?