I'm glad you've read the book, and you're waking up to the coup taking place. There's a reason all credible scholars of the period have been ringing alarm bells warning about trump since 2016.

The only thing I'd argue with is that antifa is not an organization. It's a movement or an idea. It is a portmanteau of anti-fascism, or the ideology of being against fascism, the ideology of a central dictator governing autocratically by suppressing opposition and belief in a hierarchy of races.

There is no current Proud Boys equivalent on the left of the political spectrum.