"You’ve been in the folk tradition... I wonder how your attitude toward those types of songwriting have differed under President Trump..."

"... versus, at the time, under George W. Bush, when you wrote 'When The President Talks to God,' one of your best-known songs."

The NYT interviewer asks Conor Oberst, in "How Conor Oberst Survived Teenage Rock Stardom" (gift link).

Oberst answers: "You know, it’s really hard for me to even articulate the Trump era. Maybe at some point I’ll be able to do it. It’s like, you can’t satirize what’s already a parody. It’s already a disgusting, gross cartoon.... I’m sure it permeates everything I write, but to write directly toward, I found it almost impossible.... I mean, I’ve thought about it and I’ve had plenty of people be like, where’s the new 'When the President Talks to God'? I don’t know. It’s such an avalanche of insanity."

What is the origin and history of the idea that something/someone is beyond parody because what they already are is the parody?