> For example, charter schools shouldn't get a choice in rejecting students, etc.

What makes you think this isn't what parents want. Kids are kicked out of charter for "behavior issues" which is basically code for not keeping up with the curve and holding the class back be it in academic performance, behavior issues, disruptions, whatever. Good amount of parents want their kids track. Its why screened public schools are more desirable vs local unscreened schools. Some charters employ a more extreme version of tracking but its not like it was never unseen in public school G&T, honors and other tracking programs. If your grades don't keep up, you not guarantee a spot in next years G&T, honors, etc class. No different what's practice in some charters, can't keep up, you get cut.

Again charter schools wouldn't be necessary if NYC DOE didn't wage war on merit & tracking the first place especially at black and brown neighborhoods. Ever wonder why some charters have some of the best performing black and brown students in the city outside of screened public schools that are not in their neighborhoods? ITs bc the NYC DOE continues to failed these students, left them with poor local choices and left these promising students untracked. The current public curriculum is subpar and watered down with screened schools never expanded despite the demand. Which drives parents to seek alternatives. Again map charter school locations, more often its located in the very same hoods as the terrible local public schools but seen by parents as a better alternative vs what they got.