Only study after study has refuted this nonsense, and still I hear simpletons parroting this demonstrably stupid policy because it "sounds" good in their Milton Friedman Utopia fantasy world.
Competition makes everyone better. Vouchers give parents the power to send their children to the school of their choice. This would allow us to eliminate testing to grade schools... enrollment will tell us which schools are performing well and which ones are not.
There's nothing Utopian about that. Some schools will fail. I argue that allowing bad schools to fail is far superior to propping up bad schools in a state perpetual mediocrity.