On point 1: Why are you moral? The whole argument I've been trying to make this thread is that Elizier's moral ideas, though he doesn't realise it, lead naturally to deontology. You seem to disagree with Elizier's metaethics, so yours becomes a point of curiosity.
Elizier's: Clearly your post doesn't work as a defence of Elizier's metaethics, as it was not to meant to be, for the most part. But the last pargraph is an exception.
I'll try a different approach. There is always A morality, even if said morality changes. However, "The Moral Void" and it's basic argument still works because people want to be moral even if there are no universially compelling arguments.
On point 1: Why are you moral?
What do you mean by moral? Why my behavior largely conforms to the societal norms? Because that is how I was brought up and it makes living among humans easier. Or are you asking why the societal norms are what they are?
My apologies if this doesn't deserve a Discussion post, but if this hasn't been addresed anywhere than it's clearly an important issue.
There have been many defences of consequentialism against deontology, including quite a few on this site. What I haven't seen, however, is any demonstration of how deontology is incompatible with the ideas in Elizier's Metaethics sequence- as far as I can tell, a deontologist could agree with just about everything in the Sequences.
Said deontologist would argue that, to the extent a human universial morality can exist through generalised moral instincts, said instincts tend to be deontological (as supported through scientific studies- a study of the trolley dilemna v.s the 'fat man' variant showed that people would divert the trolley but not push the fat man). This would be their argument against the consequentialist, who they could accuse of wanting a consequentialist system and ignoring the moral instincts at the basis of their own speculations.
I'm not completely sure about this, but figure it an important enough misunderstanding if I indeed misunderstood to deserve clearing up.