Demographic anxiety is not racism

From Tyler Cowen's interview with Ezra Klein:

COWEN: Absolutely. Now Putman, let me ask you about Putnam, and how Putnam relates to Donald Trump. As you know, Robert Putnam at Harvard, he has some work showing that when ethnic diversity goes up that there’s less trust, less cooperation, less social capital.

If you think of yourself in the role of an editor, so you have an American society, diversity has gone up, and a lot of people have reacted to this I would say rather badly — and I think you would agree with me they’ve reacted rather badly — but there’s still a way in which the issue could be framed that while diversity is actually a problem, we can’t handle diversity.

Putnam almost says as such, and do you think there’s currently a language in the media where you have readers who are themselves diverse, where it’s possible not to just be blaming the bigots, but to actually present the positive view, “Look, people are imperfect. A society can only handle so much diversity, and we need to learn this.” What’s your take on that?

KLEIN: I strongly agree. We do not have a language for demographic anxiety that is not a language that is about racism. And we need one. I really believe this, and I believe it’s been a problem, particularly this year. It is clear, the evidence is clear. Donald Trump is not about “economic anxiety.”

COWEN: A bit, but not mainly, I agree.

KLEIN: That said, I think that the way it’s presented is a choice between economic anxiety and racism. And one I don’t think that’s quite right, and two I don’t think that’s a productive way of having that conversation.