Many states don't allow unions. North Carolina, for example, is a right to work state which means it does not support unions. So if the teachers went on strike, the employers are legally allowed to fire them to prevent a union. The better course of action would be to just walk out or resign. You will find in the states that allow teachers to unionize, the pay is better, the benefits are better. But if you look at the right to work states..about half the USA doesn't support teacher's unions.

Every day a learn a new reason why the USA are a dystopia

Not exactly a strike but at a school I used to study at teachers and students did a march at the town hall demanding a better pay/better work environment.

Most states from K-12 are in a public school system and are not "allowed" to strike. They call them walkouts. I remember when I was in HS in Ohio, the teachers struck, I joined in and brought food

Alpha, you said "I don't know about you", well, I'll let you know. My parents are both teachers (retired, btw) and they are both selfless and they both took parts in strikes multiple times. It's a chain reaction, really. If the teacher is treated with dignity by the authorities, the quality of work is better too, therefore, the kids will have it better as well.

Alpha, many of the teacher union strikes that have happened across the country were about the students as much as the teachers. Like any job in the world some people are better at it than others and yes the union should do a better job of policing itself and bad teachers, but to take a shot at unions over someone suggesting they strike for better outcomes for students (which they have in many cases) is disingenuous.

Unions dont mean better results for the kids. It just means better results for the teachers. I dont know about you, but the best teachers I had were the selfless ones. Unions dont automatically make you a better teacher and it certainly doesnt equate to better education. I think unions can be good but they are used as a way to ensure job security without having to prove that you deserve that job security. I still think it would be wise of schools to review performance of the kids.