The only way to accomplish this is to remove the coercive force of government from education. We cannot be free until we are all free to educate our children as we see fit. We cannot afford to allow government to continue stealing our children's education money and then forcing us to accept the education mandated by faceless bureaucrats. Once we recognize that education cannot be separated from religion and religious values, the courts should rule that the Constitution's mandate for separation of church and state also applies to the separation of school and state. Don't hold your breath waiting for this to happen.
Judges eagerly do violence to the Constitution to reach results they like.
They refuse to follow logic and common sense to results they do not favor. It will not be easy to achieve separation of school and state. Nothing worthwhile is easy. The government school monopoly wasn't built overnight. Neither will its destructive burden be dismantled overnight.