Kendall Wrestles With His Daughter, Logan, and Shiv

Kendall knows that Menken and his fascist beliefs would be terrible for the nation writ large. And he does, I think what actually pushes him over the edges is Shiv trying to manipulate him into doing the right thing for the world. When he learned she wasn't being genuine or when that was a tactic, he completely shut down and said, fuck it.