Here's an idea I had, and thought I'd toss out. Partly I'd like to see if my 3 readers (a guess) are paying attention, and partly I'd like to explore this idea: I haven't decided if I like it or not.
Public schools are a bit like Walmart. Pretty much anybody can be served: you don't need specialty schools except perhaps for some very special students (such as the deaf.) There are economies of scale and combinatorial choice in (for example) a comprehensive high school.
If libertarians want to demand school choice as public policy, why shouldn't we demand shopping choice as public policy?