Sorry, but the biggest educational changes are coming from outside the public/private schools. How many former teachers or those formerly associated with public/private education are un/homeschooling today?

I briefly taught at public high school about 15 yrs ago. I left because the institution/administration/public policy makers do not allow change from within. They were hostile to it. It was all teaching to the test and no differentiation whatsoever.

As a parent of a 2e kid, I didn't find the situation terribly different with two gifted schools either, unfortunately. Sad really.