The public education system is an unchecked bureaucracy with lots of money.
Classic government run, top down organization where the few dictate to the many and the rank and file fall in line and do not question what they are told.
They waste money on programs that do not help the kids or worse actually hurt the kids. They treat the kids like little experiments in social engineering.
The money on programs is not wasted. The money is siphoned into the pockets of the leftwing faithful
The money is stolen by the corrupt