While I have some sympathy to the author's dissatisfaction with elements of the modern left, I think there's something fundamentally self-defeating about any _political_ movement that begins and ends by insulting its opponents. You don't convince anyone of anything, by calling them dumb, zombies, or evil. This is as true of relations between factions within a party, and between parties (which are factions within a nation). The most basic problem in our civil discourse, is that it is too focused on invective aimed at those with which one disagrees, which is corrosive to any attempt to find consensus on what to do.
Most of the "dumb" opinions held by left, right, or otherwise are held because they are the most opposite one can get from the Enemy, whoever that is thought to be, and getting as far away from the Enemy's position feels like the right thing to do. The solution is to get a healthier opinion about what "those people" believe, and why they believe it. "Dumbening" in the title of the article, is not a great start to that.
Most of the "dumb" opinions held by left, right, or otherwise are held because they are the most opposite one can get from the Enemy, whoever that is thought to be, and getting as far away from the Enemy's position feels like the right thing to do. The solution is to get a healthier opinion about what "those people" believe, and why they believe it. "Dumbening" in the title of the article, is not a great start to that.