This is a shocking development: The infamous billionaire Koch brothers have a plan to disrupt American education, beginning with five states. Their goal is to break up the public education system and enable public funding to flow to every kind of school, whether religious, private, homeschooling, for-profit, anything and everything. They call it “educational pluralism.” At the Koch Conference last year (700 people who paid $100,000 to attend), they declared that K-12 schooling was “the lowest hanging fruit,” and…