> We did but it is a concept not a physical thing.

We actually don't know this. People have qualia, which is an unexplained physical phenomenon. It could be that the universe comes with some universal signal that twists the thought processes of all beings with qualia, so as to shape their feelings about moral questions, to align them with true universal morality.

Obviously, I just made this up, and even if it were true, maybe you'd call the signal false universal morality, but it could be a physical thing.