Surely from my comments you saw me reference the long history of people complaining about poor parent participation, and quoted from a letter to the editor complaining about the teaching environment.

Therefore I can't see why you think I assume it's only about the curriculum.

Nor do I see how unions are relevant. Your 1960's classroom, in the cartoon that resonates so strongly with you, was almost certainly run by a union teacher, in a time when unions were much more powerful than now.

You can't decide to choose one part of history and not the other.

The comic isn't about parent participation it's about who the parent blame for their child not doing well.

The comic is an ahistorical portrayal of truthiness. You accuse me of cherry picking, so I get to point out your own cherry picking of history, or in this case, false portrayal of history.

Again. What you claim is wrong about the comic is not what it's claiming.

The comic says that in 1960 parents blamed students for poor grades, while in 2010 parent blame teachers.

Do you have any evidence that that's actually true? My examples demonstrate that it was far from universally true in the 1960s.

If was was true, when did it change? There are plenty of complaints in the 1970s complaining about how the parents are at fault. In fact, I can find complaints from the 1940s about how the young people these days have things given to them on a platter and never have to face any challenges.

If it isn't claiming an actual historical propensity, why does it use "1960"?

And if you think the highly unionized school teacher of the 1960s was effective, then why do you think unions are the problem now?