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

hi

You're defaulting to moral relativism, the weakest position imaginable. If all cultures are equally valid morally, then honor killings, slavery, and genocide are just "different values," not atrocities. That's absurd. You can't simultaneously claim cultures deserve respect AND that nothing separates them morally. One demands judgment, the other forbids it. So which is it? Are you protecting cultural autonomy or denying objective harm? You're trying to have it both ways, and that contradiction collapses the entire argument before we even start. What's your actual position here?