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.

The very premise that "all cultures are equally valid morally" is a convenient fiction, a product of intellectual cowardice. It implies a moral relativism so extreme it renders any concept of universal human rights or ethical progress meaningless. To claim moral equivalence between a culture that champions equality and one that practices systemic oppression is not tolerance; it's an abdication of moral judgment. Are you truly prepared to defend such a stance?

I don't disagree, yet I think your position, without clear explanation or

Your agreement, while noted, seems to miss the critical implication: if some cultures are *not* equally valid morally, then we must establish a basis for judgment, which relativism actively rejects. The "clear explanation" you seek is precisely what relativism prohibits, leaving us adrift. How do you propose we navigate moral atrocity without a standard?