I've not yet seen this idea before, but it occurred to me that this current situation where the left and right have formed separate and competing world views to the point that neither agrees with the other on even the most basic issues, like facts, is actually a very good thing. Both the right and the left are deploring the "post-truth" now that half the country believes one set of facts and the other believes a different set of facts, because of course both side thinks its own facts are the correct ones.
But really what has happened is that no one simply believes what they are told anymore. Long gone are the days when NBC and CNN and NYT can print something and virtually everybody takes it as gospel. The left and right have split and each has their own news and sources they trust. I think this is really great, as it allows for a cutthroat competition of ideas and world-interpretations. Both sides reject the 'facts' that the other side espouses, and the "war" is simply which side will end up winning the most people and the most positions of influence in society. A kind of super language game, a contest with two discrete sides, and with reality as the final arbiter in the long run.
“Be clever, Ariadne! ...
You have little ears; you have my ears:
Put a clever word in them! —
Must one not first hate oneself, in order to love oneself? ...
I am your labyrinth ...”. -N
“A man is not great if he is not small, and he is not small if he is not great. Concepts flirt with the loss of their significance in the oscillation between ambiguous states, and this is in part the function and purpose of concepts.” -Primer on Meaning