He does not mention what the far right is doing because it is clear to those of us who have been observing at all. If you read the comments you can also find more information — but you ask: How is the far right doing this? By creating internal enemies. By pushing and accepting the hateful lies of Qanon, hysterical pro-gun conspiracies, pro-fundamentalist Christian and anti-“liberal“ propaganda via Fox News, OAN, the New York Post (not as blatant) and a few others. Qanon has been a major threat, with propaganda lifted directly from the Nazi era (“Elders of Zion”). Mostly: engendering & encouraging fear and hatred of large groups of Americans. Division, anger, fear of the “other.” Pretty typically fascist. Not to mention the cult leader. You need one of those.