The way I see it is as a choshen mishpat question. I dare anyone to show me the precedent in choshen mishpat in which the owner of a school is REQUIRED to allow dangerous children who were born to gullible, irresponsible, and generally stupid parents, to attend their private institutions even if it causes them a loss.
I’d love to watch that Din Torah.
Until then there is no binding psak on anyone. People confuse unvalidated opinion letters with “daas torah” (whatever that is). What gives it power, the stationery or photoshopped signatures?
People quote “lo sassur” but forget that the possuk starts with going to beis din.