If the average Public school was a non-profit organization asking you for your money to attend to some perceived public ‘good” you’d probably refuse to give them any. You might even ask the “authorities” to investigate them for fraud after seeing their balance sheet.
When 70% or more of all “donations” go to staff salaries and benefits, there isn’t much left for the business for which the institution claims to exist. And that is exactly what most Public school budgets look like.
They are no longer, if they ever were, a system by which a public body invests in securing the knowledge base in future generations for the common good. They are a scam whereby a protected partisan political class extorts salaries and benefits in exchange for a virtual monopoly on institutionalized day-car services disguised as education.