There is nobody less qualified, nobody, to teach a 6th grade class, than the PhD who thought they'd be tenure tracked at an Ivy League university by now...
I can think of a lot of people who are less qualified than someone with a Ph.D. "who thought they'd be tenure tracked by now," like people who can't do long division, and at the more extreme end, people who are functionally illiterate, and people who have a sobriety problem. I would bet money that there are a solid number of current 6th grade teachers who honestly aren't qualified to be teaching sixth grade because of lack of subject knowledge.
This is just a sweeping generalization that comes with a strong implication that a teaching credential is more important than subject knowledge. It's also quite judgmental about people who got Ph.D.s in our US doctorate factory, only to discover that academic jobs these days are largely built around low-paying positions filled by adjuncts. And you blame these people for finding a job and getting to work? Should they know their places and stick to teaching college students instead? Or is it that you met a couple terminally-degreed people who maybe weren't suited to teaching, and extrapolated that fact to everyone with a Ph.D. who isn't an academic? Like being unsuited to teaching never happens among the credentialed crowd with BAs in education?
Writing sweeping generalizations doesn't help.
