I identify as a moral realist, but I don’t believe all moral facts are universally compelling to humans, at least not if “universally compelling” is meant descriptively rather than normatively. I don’t take moral realism to be a psychological thesis about what particular types of intelligences actually find compelling; I take it to be the claim that there are moral obligations and that certain types of agents should adhere to them (all other things being equal), irrespective of their particular desire sets and whether or not they feel any psychological pressure to adhere to these obligations. This is a normative claim, not a descriptive one.
I identify as a moral realist, but I don’t believe all moral facts are universally compelling to humans, at least not if “universally compelling” is meant descriptively rather than normatively. I don’t take moral realism to be a psychological thesis about what particular types of intelligences actually find compelling; I take it to be the claim that there are moral obligations and that certain types of agents should adhere to them (all other things being equal), irrespective of their particular desire sets and whether or not they feel any psychological pressure to adhere to these obligations. This is a normative claim, not a descriptive one.