That's a bit dramatic, isn't it? Compared to Stalin, Hitler, Pol Pot, Mengele, et al, the line of succession to history's greatest monster to Rupert Murdoch is pretty long.
But also Murdoch is one of the driving forces in this brave new world where you have to be extreme to be acceptable. If it weren't for Murdoch, allegedly, we wouldn't need to call someone actually Hitler in order to be sufficiently devout to our partisanship.
The greatest irony of his success is that the same people who personally trumpet their visceral hate for Murdoch will also tell you with a straight face that the Great Man theory of history is harmfully and false and everyone is only a product of greater historical trends.
