But here's the thing - that's not happening. Companies that continue to produce substandard products go out of business. Maybe a bad model here or there - but recalls happen... AND no Amercan company puts out the same washer for 30 years that has problems. It doesn't happen.
Your 'washer' example might be true in a Communist country where companies are 'protected' by law. In a free market economy a company that puts out crap will go bankrupt... so your example doesn't hold.
Teachers who can't teach should be fired.
A man with a PhD from MIT will teach high school if it pays enough... and maybe that's the quality we need. If 'teachers' lose their union protection then we can start getting people in the schools smart enough to do the job.
If a company can't produce a washing machine they go out of business... if a school system can teach they should be replaced.
“A man with a PhD from MIT will teach high school if it pays enough...”
Yes, and it would be a tremendous misuse of talent. Assuming the PhD was legitimate, most of the students would be too young to be able to absorb what he could teach.