“A = A” makes sense, but it seems to be a trivial tautology. Actually I can phrase that better; see here.
Here Liberal Vichy / Vichy Army defines ontological egoism as the view that “value subjectivism is a necessary fact.” If I take that to mean that all value is subjective, I would agree, but I still don’t know what you’re saying (as in, I have utterly no clue at this point).