I considered that, in my article; but as I pointed out the Charter Schools have been exposed in one scam after another depriving schools of the funds they need to improve education instead of fixing the problems. And, one of the strongest pieces of evidence is the higher violence in New York City in charter schools than in public schools.
Also some of theses Charters have been controlling these schools for decades, without improvement. Studies from reliable sources like Diane Ravitch or the NEPC debunk corporate propaganda one time after another, but the media refuses to report it!