So you have to start defining “morality” any you figure out pretty quickly that no one has the least idea how to do that in a way that doesn’t rapidly lead to disastrous consequences.
No, because it’s possible that there genuinely is a possible total ordering, but that nobody knows how to figure out what it is. “No human always knows what’s right” is not an argument against moral realism, any more than “No human knows everything about God” is an argument against theism.
No, because it’s possible that there genuinely is a possible total ordering, but that nobody knows how to figure out what it is. “No human always knows what’s right” is not an argument against moral realism, any more than “No human knows everything about God” is an argument against theism.
(I’m not a moral realist or theist)
I wasn’t making an argument against moral realism in the sentence you quoted.