Here’s a playoff proposal I don’t think I’ve seen yet. Each year let public schools that qualify for the playoffs opt into a public-only playoffs. This allows privates to stay in the IHSA, allows publics that want the competition to continue facing them in the playoffs, and allows those publics that want to face only other publics divisions/classes that the IHSA will seed by enrollment.
There definitely will be several public only classes. If all of the publics opt in so be it. However, I bet this gets us closer to an “open” class where the programs that feel they are best can compete. It will have several highly competitive mixed classes and several public only classes where there won’t be complaining. Everyone wins.