How charter schools are cheating

If they're so superior then why do they have to take public money away from public schools? That is cheating by making it all the harder for pubic schools to perform and giving charter schools unfair advantage. If charter schools are really superior then let them compete on their own against public schools without this cheating. But that's the thing: Without that cheating they are actually far inferior to public schools and they know it. Hence they cannot compete without cheating. It's just one more way Repugnantans rig the system in their favor because otherwise they are big losers.