I am not equivocating. It is clear what I mean by 'subject' - a mind, a subject of experiences. After all, I defined 'objective' as meaning 'exists outside of minds' or 'exists as something other than states of mind'. So clearly by 'subject' I mean 'a mind' (as opposed to, say, a topic of inquiry).
And it means the same in every premise. So there is no equivocation.
An argument like this clearly equivocates:
1. Subjects can value things
2. History is a subject
3. Therefore history can value things
But my argument does not.
What you said about society valuing things didn't make any sense to me - yes, we can say that society is founded on moral principles, but it is exactly what moral principles (and values) are that is the topic of inquiry, so whether society is or is not founded on them is neither here nor there. The point, though, is that a) either 'society values p' is elliptical for 'the majority of the subjects constituting a society value p' in which case no premise is challenged, for subjects can value things, or b) society itself, distinct from the subjects composing it, can value things, in which case society is itself a subject and, once more, no premise is challenged.
So again, no premise in the first leg is challenged. And as for whether moral values would be identified with the valuings of a society (whether the society itself, or the majority of those composing it), no - clearly not, as the second leg demonstrates.
Once more you ask me something that the argument itself tells us about. We have discovered, via the arguments, that moral values are the values of a subject - of a mind. Not me, not you, but someone else.
Who? Well, that question is confused. I mean, you are a subject, yes? And you're not me, yes? So, now imagine I ask you "so who are you then?" That's confused, yes? You're you. You don't have to identify yourself with someone else - someone I already know. I know you now, via this. And you're you and not someone else.
Now, whose values are moral values? Well, the values of a subject. Which subject - who? Well, the subject whose values are moral values. Her. No one else. Her.
Is she God? Possibly - I don't know, the argument hasn't told us. But her values are moral values which, I think, makes her a god of a kind. It is not that she's a god and so her values are moral values - which seems to be how you're construing things. No, no, no. Her values are moral values and so she's a god. It is that way around.