Teachers have got their backs to the wall, they say things that someone in a another line of work wouldn't say.
They are lashing out in every direction.
Blaming parents etc
The rich man talks more than the poor man, socialism takes money from the rich man, gives it to the poor man and the poor man talks less.
The better you are at talking the easier it is to learn to read.
Poor speech, poor reading, poor parenting, stressed teachers. Round and round and round.
State education doesn't help the poorest, it helps the middle classes get good cheap education for their kids.