The solution is actually extremely simple: end public schooling. When a parent no longer has an easy route to shuffling responsibility for the mental development of their children onto someone else, then the outcomes for children will immediately dramatically improve. Parents have an instinctual, god-given drive to do what's best for their children, whereas teachers (who are fundamentally strangers to these children) are fundamentally driven to push their personal ideology onto the children, because that biological instinct is missing.