No, you elicited my explicit denial that we can know (now) there is such a thing. Since I asked for, but you never provided, an explicit test by which we can know it, I assume you must agree with me. Perhaps that was unfair of me because I know (and oviously this was my point) your opinion isn't based on a predictive theory, so you can't provide such a test.
whatever you are describing, it is something other than morality
No, it's something other than what you think morality must be.
An analogy occurred to me later. Your attitude is like someone who asks you "what is the force that pushes me right when the car turns left?" and then, after you give the account involving a change in reference frame, complains that you've not explained Real Centrifugal Force, but rather explained it away.
On that we can agree.
For your edification I post a link to an entry I found today in the Stanford Encyclopedia of Philosophy: Metaethics, particularly sections 3,4 & 5, which delineate some of the challenges and burdens relative to our respective positions.
Cordially,