WARNING: I am writing in “autistic” mode which most people will find counterintuitive.
I agree with JF that “moral” nihilism is a factually true position. But I also consider subjective valuations to be necessary for human life, and I think that societies cannot exist in a state of order when the subjective values of the populace are significantly divided. The claim that there is an objective axiology of good and bad may keep order both in a society and in an individual, even though it is a factually incorrect claim (as far as I can tell). [edited]
The problem with Stefan Molyneux’s argument for objective values of good and bad is the same problem as the consensus-based “traditionalist” argument for objective values of good and bad: the naive idea that all humans and all human groups have the same “moral” intuitions, when in fact they don’t, and this often shows itself in very non-trivial matters; moral intuitions differ with biological parameters such as intelligence, personality and evolutionary strategy — and this is one reason why it is not normatively preferable to force interpersonal association.
However, if we take the point of view provided by Curt Doolittle, then it seems that JF (and Ryan Faulk) miss something: that morality, operationally defined, is not valuations of “good and bad” but simply a fact of non-parasitism present in some behaviors. If Doolittle is correct, some behaviors can be objectively described as moral and others as immoral, but whether they are good or bad is a preferential value judgment. I ultimately side with Doolittle on this particular point, he does manage to maintain Hume’s Law in his concept of moral objectivism, but I would be willing to openly discuss this topic with JF and/or Faulk if I have time.
I should note before finishing that the notion of objective good and bad, as well as the Aristotlean understanding of telos, which inherently implies an ought that is an is, conflates normative and positive., i.e. violates Hume’s Law. [edit: It also seems to be an anthropomorphic mental error, as far as I can tell].