"[Johnson's] explanation is a little thin. It’s more an illustration of how he’s flipped out, from right to left. But apparently it works like this: If you disagree with any element of half of the American body politic, you disagree with the whole thing. This makes you saner, more compassionate, more embracing of diversity. Probably smarter, too. And if you agree with any element of half the American body politic, you agree with the whole thing, and you are a crazy hater. But the whole thing is crazy and hateful...."
Personally, I don't need to go through the exercise of figuring out what happened to Johnson. I've avoided him all these years because he seemed too extreme and hateful. Now, he's fired up about other people being extreme and hateful? And he's fired up in a way that seems extreme and hateful? I do not need to go there. That was never my scene.