I don’t mind rhetorical descriptions of China as having ‘less economic and political freedom than the United States’, in a very general discussion. But if you’re going to make any sort of proposal like ‘there should be more political freedom!’ I would feel the need to ask many follow-up clarifying questions (freedom to do what? freedom from what consequences? freedom for whom?) to know whether I agreed with you.
Well-being is vague too, I agree, but it’s a more necessary term than freedom (from my philosophical perspective, and I think most others).