As far as I understand, if anything like objective morality existed, it would be a property of our physical reality, similar to fluid dynamics or the electromagnetic spectrum or the inverse square law that governs many physical interactions. The same laws of physics that will not allow you to fly to Mars on a balloon will not allow you to perform certain immoral actions (at least, not without suffering some severe and mathematically predictable consequences).
Objective facts, in the sense of objectively true statements, can be derived from other objetive facts. I don’t know why
you think some separate ontlogical category is cagtegory is required. I also don’t know why you think the universe has to do the punishing. Morality is only of interest to the kind of agent that has values and lives in societies. Sanctions against moral lapses can be arranged at the social level, along with the inculcation of morality, debate about the subject, and so forth. Moral objectivism only supplies a good, non-arbnitrary epistemic basis for these social institutions. It doesn;t have to throw lightning bolts.
Objective facts, in the sense of objectively true statements, can be derived from other objetive facts. I don’t know why you think some separate ontlogical category is cagtegory is required. I also don’t know why you think the universe has to do the punishing. Morality is only of interest to the kind of agent that has values and lives in societies. Sanctions against moral lapses can be arranged at the social level, along with the inculcation of morality, debate about the subject, and so forth. Moral objectivism only supplies a good, non-arbnitrary epistemic basis for these social institutions. It doesn;t have to throw lightning bolts.