That’s pretty close. Moral statements are pronouncements of what one believes best serves the purpose of
Did something cut off here? Best serves the purpose of... what?
The obligation comes from your own self-interest. If I can convince you that it is against your self-interest to steal, you will either refrain from stealing or you will act against your own self-interest.
All right, so you've stated here that moral obligation, the "ought" as it were, is based upon what best serves my own self-interest. But you've also stated here that my self-interest is separate from my own opinions on what that self-interest is. This makes sense in a way -- after all, if "my self-interest" is entirely dependent upon my own opinion of what that self-interest is, then I can literally never be wrong, and questions of morality become moot.
Of course, this conflicts with the quasi-emotivism you and others have been espousing, which states that declarations of right and wrong ultimately boil down to individual emotional responses to specific actions, which is purely subjective and pre-rational. One says that an act is "wrong" because it goes against one's own self-interest; the other says that "wrong" is just a fancy way of saying "I don't like this."
Appealing to self-interest also presents a number of odd moral questions. For example, self-sacrifice would be morally ambiguous at best and despicably immoral at worst.
You can choose the reckless path if you wish, but don’t be surprised when those of us invested in our own collective self-interest dedicate a significant amount of time and resources to stopping you.
This suggests that an act like theft (or something far worse) is only immoral insofar as it violates my own self-interest, and it only violates that self-interest insofar as I may face punitive action from those around me. The act itself would be utterly without moral character.
Notice that I don’t have to make any moral pronouncements whatsoever to make a good argument against your proposed act of theft.
That's in part because you don't have any moral basis upon which to make those arguments.
What? Right/moral/good actions are those most conducive to human flourishing.
This is not consistent with what you've been saying. Above you stated that obligation to act or not act came from what best served my own self-interest. Here it's about what's most conducive to human flourishing.
Wrong/immoral/evil actions are those most conducive to human suffering.
So "wrong" isn't what's against my own self-interest? Now it's what's conducive to human suffering? Why is suffering in itself an immoral thing?
There's a leap you're making here that my personal self-interest, and indeed the self-interest of every individual, is synonymous with "what's most conducive to human flourishing" but also varies from person to person so widely that "human flourishing" becomes essentially meaningless. This has not been established or justified at all.
It has nothing to do with fear of retribution. Fear of retribution is a motivator of behavior, not a moral compass.
True, but it's the motivator you're appealing to the most here. Even the self-interest bit above seems to suggest that some action would only be against my self-interest because it would bring about retribution from other people acting in their self-interest.
You’re acting against the interest of all parties involved. Going by the definition I just provided, is there anything more wrong than that?
Perhaps not, but again, this is stating that something is wrong because it will bring about punitive action from other people. It doesn't really gel with wrongness being about how conducive to human suffering
You answered your own question. It’s legal action taken legally. Unless you’re an actual anarchist I think you know exactly why personal property rights are worth enforcing.
No, certainly not an anarchist. I'm asking for a moral justification for it from your perspective, though.