The vote result may be as a result of 'contract law'. I don't agree with it, but with almost everything else, there's more to the story.

Seldom do parents read the fine print when enlisting their children in public schools. The contract parents sign surrenders their rights as custodial parents when those children are in public schools. The public school becomes the de facto guardian of these children. Teachers know this. This is why teachers have little respect for parents. Perhaps, there would be better success in attacking the contract with its terms and conditions. Otherwise, home school you children or find a private school that isn't taking government grants or subsidies.