it can be subjective and the argument still goes through.
How does that work? Alice thinks the moral worth of a cow is high enough not to mistreat or eat it. Bob thinks that the moral worth of a cow is zero and cares only about the quality of his steak. How are you going to reconcile their views (or even estimates)?
I'm not. Each of them has a moral opinion and knows what they believe to be the right action. Their disagreement is an ordinary moral disagreement; there are plenty of other moral questions where there is no consensus.
I think it's past time for another Stupid Questions thread, so here we go.
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Please respect people trying to fix any ignorance they might have, rather than mocking that ignorance.