I'm all for it, but I doubt it will ever happen. Too many Americans are unwilling to be independent of Big Government and its services, even if those services are often of a poor quality.
For an example of your efficient government schools at work, see this post by Ugly Naked Guy. The UNG is a teacher working hard to make a positive difference in a public school, but the school bureaucracy sure doesn't make it easy for him.
I'm sure he could tell countless similar stories, and as a parent who has past experience with the public school system, I could tell more than a few such stories myself.