Home schooling has traditionally been given to kids whose parents are on the extreme fringes of society, hippes on the left and bible bashers on the right.
Because of the growth in religious extremism, there has been a similar growth in home schooling, meaning that some schools have had their budgets cut as they lose pupils and per pupil funding.
To woo pupils back, a school in Oregon is changing its curriculum to include creationism in science classes and biblical texts in English literature classes, leading to a crappy science and boring, one-dimensional art education for everyone.
So for those that do point out that the US is by and large moderate, here is a concrete example of how the passion of a mindless minority over the apathy of the majority leads to an undemocratic situation where the minority view is enforced rather than tolerated.