Subjective Morality?

[DLJ]

...
The cat can exist independent of the human mind but the ownership (relationship) is not independent of the human mind.

That's a cat realists position, the cat subjectivist denies the mind independent existence of the cat.

Fair enough. No problem with that... "That cat exists" is a claim that can be validated or invalidated at the physical and empirical information layers and only needs consensus regarding the semantic layer (regarding the meaning of 'cat' and 'existence').

What would be a similarly useful example of a 'moral fact'?

Cheers.