Every parent should have a reasonable financial choice to send their children to a good school and government vouchers would be the best use of taxpayer dollars. Public schools may even survive if parents choose to send their children there based on good school performance. Christian schools teach morality and basic civilized behavior in an efficient manner. It may not work perfectly for every kid but its better than churning out a bunch of kids that commit crimes and can't get a job.
Christians should develop their own school system and avoid public schools if possible. Young children are too vulnerable to secular value indoctrination. Our rights,freedom and responsibilities come from God and not from the state. It is impossible to teach that in a public school because the mention of God is forbidden.