People who got legitimate subject matter degrees will be able to teach school. Indeed, they'll do a better job. They'll actually know what they're talking about.
As a kid, I was interested in history, especially dark age history, in large part thanks to a book authored by Isaac Asimov.
I got separate degrees in History and Latin while an undergrad. I then got a master’s degree in medieval canon law at Columbia at the same time Barry Soetoro was allegedly attending. I wrote my thesis on the preface to the Pseudo-Isadorean decretals.
I enjoyed it. I still read a lot of history today.
And I got to spend a year in New York on Columbia’s dime.
Plus, it got me into law school.