Okay, so, leaving the shame thing behind us, the two gaps that I see:

1. If someone thinks the human self is essentially good and society makes it bad, they could still be concerned with how people can behave well in society. So the fact that Rousseau wrote about that in The Social Contract doesn't seem to contradict OP.

2. If it's possible to unite intent and action in a model of a good person, there could still be philosophies that are incompatible by virtue of how they overemphasize one or the other. So again, I don't see how this contradicts the OP.

I agree that the OP is probably full of hot air, but it's a common gloss on Rousseau I think. And definitely supported by the Discourse on Inequality, which says that people have good animal instincts, but their natural expression of these is inhibited by social constructs like language-based reasoning and property.