The assertion that parents who choose to enroll their kids in charter schools are harming kids of parents who don’t is lacking any evidence to support it.
It is true that kids without parents who care about their education often suffer in public schools, but that responsibility rests on the shoulders of the public education system, not the parents who actually care about their kids’ education.
The way that the education system spends its resources is not a law of nature. It can, and should, be changed.
In other words, one should blame the failing system, not the parents who are abandoning it.