That's an interesting perspective, but doesnt apply here in San Diego. The corruption here is in the public school districts, SDUSD, Poway, Sweetwater to name a few. The charter high schools in our area are comparable to the publics, but are significantly better than the schools in the areas from where the kids are choicing in from. There have been a few cases of fraud in the very small charters, but a little due diligence from the granting authorities could have avoided many of those cases.
Parents love charters. Whats the harm in giving people options and giving competition to publics? Absolutely nothing.
If the Koch's want to back school choice, more power to them. Its light years better than Soros funding soft on crime DA's. I would think you could appreciate that being from NoCal.