Educators have a much harder job than some people realize. On the one hand we have local, district, state and federal mandates (most of them unfunded or underfunded) raining from the sky, we have parents that usually do not care what their kid does in school, that is, until they lose their eligibility to play whatever sport they play, then they come in screaming that you hate their kid, or that you are a racist, or that they will sue.....
You have school administrators breathing down your neck constantly about standardized test scores, and there are so many things that teachers just have to accept and deal with that take away from valuable teaching time.
But when it comes time to criticize education, do the parents get criticized because their kids refuse to learn, and are disruptive? No.
Do people criticize the school board, the administration, or any of the other groups involved with curriculum standards and the emphasis on standardized tests? OF course not.
Everything bad that happens in a school is always the fault of the teachers. They are the lowest paid, and have the most contact with the kids, and have the hardest job in a school...but everything is their fault.