I wouldn't disagree with any of that. It is symptomatic (imho) of a society that has been encouraged not to take responsibility for itself. Parents don't have respect for the teaching profession, and that is reflected in the attitude of their children. And those parents are the ones who were children of the 1980s. And so we get a self perpetuating downward spiral.
It isn't just the teaching profession either, many policemen would say the same, there is little respect for authority and a disregard of the rule of law.
The right claim this is symptomatic of a broken society where hard work and aspirational values are objects of derision. The left would say that it the fight back of the disadvantaged.