The wave is still gathering, and rising ominously, but it is not yet a breaker. It has not yet crashed onto the beach. But if you are willing to look, you can see it rising. And you can see it headed this way.
A preference cascade occurs when numerous individuals, around the same time, realize that they are not “the only one” who thinks the way they do. Before the moment arrives there is an established orthodoxy which remains unquestioned in the official spaces, but as people are left alone with their own thoughts, they find themselves thinking in various heterodox ways. And then, one day it happens. Numerous individuals discover, all at once they discover, that many others believe that the reigning acceptableness is . . . unacceptable.
When that happens, there is a lurch, a revolution, an unexpected plot twist. And I believe we are due for a momentous preference cascade. Some recent smaller examples would include the Arab spring, the Brexit vote, and the 2016 election of Trump. You will notice that I am describing a sociological phenomenon, one that can be filled with different “doctrinal” content. This is something that people do, whether left, right, or in the middle. We might agree with the preference cascade, or we might not. But it is still there.