It’s because experienced teachers both know not to waste their time teaching Obamathugs and have earned the right to pick their school and students.
And candidly you can’t polish turds. It’d be a waste of triaged resources to focus on the thugs. They are generally a hopeless case and certainly statistically far less likely to cure cancer.
In short, once again, Obama is an idiot.
Guess that ‘splains why Baltimore and Detroit city schools have so many foreign teachers over here in H1B. Because Americans are just knocking down their doors to apply, eh?