OK, this is an exaggeration. Eric Alterman’s valiant attempt to identify the systemic roots of America’s political insanity does identify a number of prime suspects: the anti-democratic rules of the political game, the role of money, right wing media, background framing and ideology. It would be nice to be able to do something about them.
But coming up with a purely American explanation for what is clearly an international phenomenon violates the first principles of clear thinking. Progressive politics has hit a cul-de-sac in every advanced industrial economy. Not even the Great Recession/Reset/Whatever has lifted the constraints. Conservatives rule everywhere, and populism is in the hands of the loony right. One way or another, the scale of the explanation has to match the scale of the explanandum.