Now for the sake of argument assuming moral realism moral regress is not surprising, since morality is complex and most possible changes in our understanding of it probably are for the worse
But if there are moral facts, there are external constraints on the viable changes to our understanding. If such external constraints don't exist, what do the moral facts cause? And if they don't cause anything, what does it mean to call them facts?
Here's a discussion of a parallel issue: scientific regress. What's interesting about the account of the loss of knowledge about how to prevent scurvy is (1) how rare these regresses are, (2) how easy it is with the benefit of hindsight to point to the scientific errors that caused the regression. In short, there's a one-way ratchet on scientific knowledge because the external facts constrain the viability of different scientific beliefs.
If there really are moral facts, shouldn't a similar one-way ratchet exist?
You talked about things "from the point of view" of different object-level moral theories. There's nothing particularly wrong with relativism as a meta-ethic, but it is an anti-realist meta-ethic.
Here's a discussion of a parallel issue: scientific regress. What's interesting about the account of the loss of knowledge about how to prevent scurvy is (1) how rare these regresses are, (2) how easy it is with the benefit of hindsight to point to the scientific errors that caused the regression. In short, there's a one-way ratchet on scientific knowledge because the external facts constrain the viability of different scientific beliefs.
But if you look earlier in history we see much clearer and common examples of technological and even scientific regress. See the loss of technology and science that occured with the decline of Roman civilization or the Greek dark age over a millenium earlier.
Related to: Voting is like donating thousands of dollars to charity, Does My Vote Matter?
And voting adds legitimacy to it.
Thank you.
#annoyedbymotivatedcognition