"pay EXTRA to sent them to a private religious school." I paid, on pain of vagrancy due to losing my house from non-payment of land taxes, for other people's kids to attend the gov'ment skool, and then paid extra for my own kids' far superior education. Some deal.
Gov'ment skools are slave training centers. If you want to perpetuate the concept of liberty in the next generation, educate them accordingly.