I agree except for one thing: No tenure encourages the firing of long employed, higher paid teachers to be replaced by lower paid new teachers. Cuts 'em loose a little short of retirement. Saves money for the system and may (or may not) affect the quality of education for the students. Unfair and unacceptable.
‘Encourages the firing of long employed, higher paid teachers in favor of lower paid teachers’
You mean like in every other job in the country? Name me a job where there is a guarantee that you will be able to stay until retirement. I retired early a couple of years ago because the younger manager made the ‘elders’ life miserable. Management loved her. It was worth it to lower my blood pressure and take a lesser SS payment. I paid in for 40+ years and will not get out of SS all that I put in. But hey, at least I likely lengthened my lifespan, not having to deal with that B**** anymore.