I started noticing this back in the 1970s, when I was a newspaper editor.
Young reporters coming out of journalism school were incredibly bad at being journalists. And I had to decide which ones to hire.
In the above example, “What did you study at clown school?” is just the sort of question you’d ask after some years at the Missouri U. School of Journalism. You would wonder whom Thomas Jefferson Middle School was named after. Who’s buried in Grant’s Tomb? (Liberace? King Tut?)
The only difference between then and now is that now Far Left politics has been added to their natural, habitual ignorance.