I've cut down the amount of political nonfiction books I read, because for many of them, I conclude a 5-10,000 word longread would have sufficed. This wasn't an exception, but it was fairly enlightening - and disheartening.
If we want to fix the rightward lurch of this country, we need to just turn off social media. Yes, I'm sure they've brought good and community to many people, but the jury is in and they've brought far more harm. No longer do you need credentials, experience, or education to have your voice or position amplified; you can be literally anyone who has figured out the trick to virality, and in case you haven't noticed, virality doesn't typically reward the nuance and thorough analysis we find from reputable sources.
The author, The New Yorker's Andrew Marantz, spent hundreds of hours with the leaders of the alt-right, who shepherded Donald Trump's rise to the White House, and with so-called techno-utopians, who naively believe giving people ever more open platforms to say and do what they want will bring about some kind of paradisal global renaissance, instead of turning everything, including lower-case liberalism, into an enormous dumpster fire. I'm not sure I needed to spend 30 pages at a time with the likes of Mike Cernovich or Milo Yiannopoulos, but it was fascinating to see just how easily they hi-jacked the new media and, to coin Steve Bannon, learned to "flood the zone with shit." Also, these people are blatantly racist, anti-Semitic and misogynistic, though seem fairly comfortable sharing the company of LGBT people (as long as they're white), such as Yiannopoulos, Lucian Wintrich, and Chelsea Manning.
This book was at it's best when it was exploring the tools and systems that made the rise of the alt-right, "fake news", and President Donald Trump possible. The naivety, ignorance, and dereliction of duty from the big tech CEOs has done more than bring us waves of toxic, racist trolls, it has potentially brought the decline of democracy. While some sites, like Twitter and Reddit, have taken steps to stem the tide against fake news and toxic communities, it's probably too little, too late. The old political and media establishments, and moderate and liberal citizens bear some blame too. While we were busy getting our degrees and living it up in the cities, we missed just how badly the hinterlands were festering. While we thought we were looking at a new dawn of progress and justice during the Obama years, Republicans - most of them, not just a small fringe as we thought - were getting drunk on Jim Beam, downing pills, listening to Alex Jones, and spending hours Googling racist and anti-Semitic jokes (yes, there are studies of this).
Anyway, it was a good book. I learned a lot. But could you learn just as much from a longread on the subject? Probably.