“What makes you boss?” is not meant to be rhetorical. I think in some cases there can be a satisfactory answer. My argument was that “because I know best” isn’t a satisfactory answer.
Frankly, if you can accurately say “because I know best,” it seems a lot more satisfactory than if you can accurately say “because there are more of us.” Let me hasten to add that David tries to offer a more sophisticated account based on what he calls “general acceptability,” but this seems very close to a circular defense of democracy.
Or is it? David explains that:
I think that your moral/political expertise is only a justification for your political authority if your claim of expertise is generally acceptable. Not to everyone, however crazy or vicious, but to some wide range of divergent views that are neither crazy nor vicious even though many will be incorrect (call these the “reasonable” views or something, and work would need to go into defining its boundaries, of course).
To be honest, I view e.g. the economic views of the average American as at least moderately crazy and vicious. So perhaps I can recast my argument in David’s terms. Unless we’re going to take the circular route and make popularity the standard of what’s “reasonable,” then my claim is many of the public’s views simply aren’t reasonable.
I don’t expect David to agree, but I would like to know how incorrect the majority can get before he’s willing to say it’s too unreasonable to be the boss.