Roger Kimball America has come perilously close to the edge of the point of no return… Joe Biden certainly set the punditocracy abuzz with his neo-totalitarian performance piece at Independence Hall in Philadelphia on Thursday. The significance of that speech can be broken down into three parts, two of which have already received abundant commentary. The first has to do with the theater of the piece, its optics or stagecraft. As many commentators (myself included) noted, the feel of the event was distinctly, and distinctively, bombastic. The melodramatic red lighting, the presence…