Not a big victory for all Chicago private schools, though.
There are roughly 16,000 kids enrolled in SEHS in CPS. Most incoming upperclassmen would probably stay and not transfer out the year the selective enrollment component is eliminated. Let's say that, in the first year of such a change, an additional 2,000-3,000 kids (both transfers and incoming freshmen) want to enroll in private schools. In subsequent years, let's call it between 1,500 and 2,000 additional kids enrolling. Once four full years pass, there may be from 6,000 to 8,000 extra kids choosing a private education because there is no CPS selective enrollment option.
Where are they all going to go?
Very few would be able to afford independent schools like Latin, Parker, Morgan Park Academy, U-High, British School, etc. Do those schools have the extra financial aid and seats available for a few hundred more applicants?
More could afford faith-based schools, but those aren't exactly cheap tuitions, either. Private schools like Loyola, Ignatius and DePaul are already operating at full capacity. More applicants at those schools are just going to mean they turn away even more kids.
I can definitely see benefits for private schools in or very near the city operating at less than full capacity. But, again, do they have the financial aid available for a large increase of applicants? How many of these new kids will actually wind up being able to afford enrolling in these schools?