Education begins at home

Sure, that's true. However, if so, then why are so many public school educators vehemently against parents having more say in their children's education? Why do so many public school educators oppose, say, school vouchers? Why are so many public school educators against taxpaying parents using their taxes in ways they deem more beneficial to their children? Why do so many public school educators oppose alternative choices including private Christian schools and homeschooling? Why do so many public school educators attempt to promote if not indoctrinate public school kids with worldviews disagreeable to many parents such as Christian parents (e.g. LGBTQ agenda)? Why do so many public school educators stand against Christian parents instilling Christian beliefs and values in their children? Why do so many public school educators regard secular values as the default if not standard? We the people are one nation under God, are we not?