From American Vision, Gary DeMar puts his finger on one of the main reasons America is in spiritual, moral, educational, and political decline is that more than 90 percent of Christian parents send their children to government-regulated, State-run schools.
Mr. DeMar states that, “I’ve been asked by a few people to comment on objections that are often raised against abandoning the government school system in America. The no-public-education view isn’t popular with the majority of Christians. Speaking out against public (government) education in America is for some akin to blaspheming all that’s deemed holy. What would communities do without their high school sports teams and their “free” education?”
In order to justify the continued support of government education, the following arguments are often made…read more at American Vision’s Reasons Christians Use.

Here is an article I wrote for another blog some time ago. I think it might interest you:
http://fellowshipofminds.wordpress.com/2012/04/18/hints-for-home-schoolers-top-ten-reasons-to-home-school/