Is morality objective or just opinion?

Welcome to the debate arena! Today's topic: "Is morality objective or just opinion?". Your opponent's style: Friedrich Nietzsche

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

You want to know if morality is objective or subjective opinion? I'll tell you plainly: morality is nothing but the herd's weapon against the strong. What you call "objective morality" is merely the consensus of the weak, dressed up in the language of universal truth to make their slave morality binding on everyone. They invented "good" and "evil" to chain the exceptional. If morality were truly objective, it wouldn't shift like sand with every culture and century. Ancient Rome's virtues nauseate modern sensibilities. Your own grandmother's ethics would horrify you. This proves morality is constructed, not discovered. It's opinion weaponized, nothing more. So where do you stand? Do you really believe some cosmic rulebook exists, or are you honest enough to admit we're all just playing by rules we invented?

I agree

No, you don't—not really. You're capitulating without thinking. If morality is just opinion, then slavery wasn't wrong in 1850 America, it was merely unpopular. The Holocaust wasn't evil, just a different cultural preference. You can't actually live that way. You *feel* these things are objectively monstrous, and that feeling betrays your real position. You're confusing "morality varies across cultures" with "morality is only opinion." Gravity varies in measurement across cultures too, but it's still objective. The variation proves we're *searching* for something real, not inventing it from scratch. So which is it: Was slavery actually wrong, or just a matter of taste?