The four Fieldston Alums that I have known are (bleeped) up people.
Ethical Culture was always nothing but a left-wing cult. I went to high school with several graduates of the lower school they ran in Manhattan, and once I was invited to one of the events they had for kids who were going to non-EC high schools. It was all raving left wing stuff having nothing to do with either education or culture, and certainly not with ethics. I think we started by losing our minds over a film of an anti-HUAC demonstration in San Francisco (of some years earlier) and then went on to organizing a “peace march” on the UN. This was followed by learning a Russian folk dance, since the Russians were Communists at the time and therefore seated at the right hand of their God, Marx.
Furthermore, they had a strange cult-like feel about them, and one of the teachers - they were the organizers of these activities - was way over the line in his touching of the teenage girls.
I went only once. Parents who were sending their kids to that joke of a high school certainly would have known in advance and approved, so the latest burst of wokeness must have been nuclear-level.