Teachers’ Unions should not exist.
All unions have the right to exist. The First Amendment protects the right of free assembly. So shouldn’t workers be able to freely assemble, and form a union? I find that argument to be very persuasive. If two (or two million) workers want to gather together and agree on a common goal, that is their right.
Ah, but here’s the thing. Employers should also have the right to ignore a union, and fire any and all striking workers. Replace them with people who are willing to work. But in too many jurisdictions that option is no longer legally (or politically) possible.
It’s no longer a level playing field.