Parents know how enervating it can be to stay on top of children's propensity to misbehavior. Sometimes you're just too drained to intervene. But this leads to the same end as encouraging the bad behavior and at that point the only option is the nuclear option. Drastic, even harsh, action is required.
And so it is with public schools. The edu-industry has been running feral for some time, quite a while longer than the general population knew. They've been feeling their oats, pushing indoctrination while abandoning and weaponizing semantic machinations in their own defense. Parents have had enough.
Parents may be patsies but they're not (all) stupid. They know their school boards are ineffective at best, sometimes harmful other times even worse. When they're on their good behavior they are restricted to approving contracts that bureaucrats set before them, hiring a superintendent with a contract the board did not write and setting policy, whatever that is. And it just so happens these three are insufficient to discipline our out-of-control public education systems.
Previously Quiet Moms have found a good stick to beat the lovely lady: money. By way of elected official who wield real power, manifest in money flowing from the state coffers to public school bureaucrats, parents have found a way to demonstrate to these wayward brats who is actually in charge. In charge of their children's education, in charge of their moral upbringing and in charge of the schoolhouse. The edu-industry hates this and "open" letters signed by superintendents have ensued. They are right to be alarmed as this is an existential threat. And a very real one. Might be time for them to behave and for many of them to begone.