I wish I could believe that it was confined to America, but I think it's just "people". I always used to believe, naively, that millions followed Hitler and Mussolini and all the rest because populations were far less sophisticated back then, with very little access to information and very little opportunity to travel, and all that kind of stuff. You know - if only they could have seen the bigger picture, and so on.
Well, what a crock of sh1te that turned out to be. Today we have all the world's encyclopaedias in our pockets, we have 24-hour TV, and can travel more or less anywhere. And what do so many people do wirh it? Watch cat gifs and reality TV, post pictures of their breakfast, gamble online, read the Daily Mail and watch Fox News, holiday in places where they know they can still get a Big Mac and fries, and follow dangerous charlatans like Donald Trump.
It pains me to say it, but I think that the natural human condition is significantly right of centre politically, with the majority showing scant interest in gaining knowledge or improving themselves - unless that "improvement" is material, comes with little or no effort, and is at the expense of others.
Taken as a whole, we're still slaves to our ancient genes and are still living in a world every bit as Darwinian as that of the beasts of the jungle.