This is actually a great example of the current phenomena where left-wing elites draw out the caricatures they want to see from their out-group (lower class or rural whites) and then reinforce it through their echo chambers.
No one at This American Life has any insight into what it means to be a blue collar worker worker.
Please don't hold me to a standard that was not requested. I don't believe there is any evidence that this was drawn out; as far as I can tell, many of the statements are simply recordings of town hall meetings.
It's a pretty central issue right now.