Just as the atrocities of Nazism are abject lessons on the dangers of nationalism, racism, and anti-semitism...

On the other side of the political spectrum, there are disturbing similarities between communism and various newly popular extreme right-wing nationalist movements. Both combine authoritarian tendencies with disdain for liberal values and a desire to extend government control over large parts of the economy.

Today’s dangerous tendencies on both right and left

So another "Both sides are equally bad" guy, originally authored for the Washington Post.

I'm curious if you don't have nationalism what you do have, as a nation?

He also links to this anti alt-right book if anyone's curious: https://www.amazon.com/Right-Wing-Collectivism-Other-Threat-Liberty/dp/157246299X/