I think most people have experienced relatives of theirs falling down these rabbit holes. They didn't seek out a reason to be angry; they watched one or two episodes of these shows because they were on Fox, or because a friend sent it, or because they saw it recommended on Facebook. Then they became angry, which made them go back because now it became a moral imperative to learn more about how the government is making frogs gay.

None of these people said to themselves, "I want to be angry today, and I heard that Alex Jones makes people angry, therefore I will watch Alex Jones."

> "They didn't seek out a reason to be angry"

A lot of people really do, and it predates any sort of media too. When they don't have outrage media they form gossip networks so they can tell each other embellished stories about mundane matters to be outraged and scandalized about.