In theory, unions are perfectly acceptable means of individuals with no money or power to associate with another one so that they have power in negotiating with the employer.
If a union's leadership becomes greedy and starts to act in its own best interests instead of the interests of the members, then that in my opinion is a problem for the union to deal with.
If your complaint is that the union makes it too difficult for the employer to fire an ineffective employee, for example too hard to fire a lazy teacher, then that is the fault of the employer for doing a poor job of negotiating the contract. I don't see why you'd be surprised that the union tries to negotiate a contract that gives them greater job security.
Honestly, why would you think that the public employee unions are wrong for fighting a change in the retirement structure that hurts their membership? I mean, that's what the union is there to do -- collectively bargain for the best terms it can get.
So strike a better deal in the next contract. Why people think that the teachers are wrong for speaking up that they don't want to pay is beyond me. The criticism should be of the government for striking a bad deal, not the teachers for trying to preserve it.
i wouldn't say teachers are uneducated, i know that wasn't what you meant to say
but the fact is that the teachers union are concerned more power and not educating students. our test scores show that. DC almost spends 10k a student yet it has one the lowest performances in the nation. you could take those kids to many privte schools for half and get 10 times the education.