Earlier quoted context omitted.
Could you be more specific? I don't know what you're referring to.
Almost certain OP is referring to the fact that nurses and teachers are not well-paid or respected in the US, which I'd like to note as well. Despite this, Public Health as a pseudo-STEM major nearly ranks with STEM fields in general for majors seen as "workplace-ready." Maybe there are too many English majors (I honestly think the supply of careers is too low). But I think the "supply is greater than the demand" is…
There are school districts where teachers are poorly compensated, but they aren't the norm over the population as a whole. Teachers are generally well-compensated.
Nursing, I don't know where to start.