People do believe the biggest B.S. too often. I've heard evangelical Christians argue the infallibility of the bible, then quote from the King James, which is notorious for being the worst translation. Plus there are multiple bibles, with differing texts. Had an evangelical tell me the trinity wasn't voted on and quoted (at least he knew that) the biblical texts used by those who voted for it. Like, everyone naturally knew about the idea of the trinity, which was first postulated and written about in the 2nd century. People are that stupid. Sorry Great Britain- Brexit; sorry my homeland- Trump.
Having been an educator, I have found school boards and administration are most likely to screw things up. Lack of parental support is close behind. And I have experienced the big three: public; parochial (yep, trying telling a Catholic they can't use emotion to write a persuasive essay when they want to hit on abortion); and private prep. Also, some time at the college level. Private schools have the most parent involvement. Still, at all levels I have seen administrations really screw up. True story: I was yelled at for reporting sexual abuse. Told the boss to shut up and follow legal protocol. He did; guy got five years; boss apologized for getting emotional, for what that is worth.
While I agree that education is in a sad state--and I am an educator--do not blame this on the school system. I had a college student who wanted to write a paper about Noah's ark being a sound argument for a topic; I cannot even remember what it was. I let him know in a rough draft that The Bible does not constitute research or a factual, academic source. You guessed it: the final draft had the info about Noah's Ark.
Schooling often cannot overcome what students are taught at home and church and while the ignorant can learn, the willfully ignorant and the stupid cannot.