That demonstrates a complete lack of intellectual integrity.
If you think Birchers have intellectual integrity, I am sorry. I think they are fun for parties, but that is about it.
Do you know that for a fact? Read the facts. I don't agree exactly with Iserbyt's conclusions about the facts, but I won't argue with what the documents she presents have to say. You are a fool to presume them errant without examining the facts.
For you to do that however, would require that you change your worldview. You would rather live in your fantasy. That I understand having gone through that process myself at length. The facts are rather unpleasant; but they are incontrovertable.
That is why we have the US Constitution which, contrary to your idiotic interpretation of state constitutions providing free public education, does not mean that COMPULSORY public education to state defined standards meets the mandate of the Bill of Rights (the preamble of which states that it supercedes the rest of that founding document). State constitutions are after all subject to the constraints of Article 4. Perhaps the only section of the Constitution that might give government such a right is the first clause of the 14th Amendment which confers citizenship, something that the National government didn't have the constitutional power to adopt (at least if you accept the premise of the existence of such a thing as an unalienable right or the idea of limited government).