My point was simply that there are federal rules in place that prevent schools which receive public funds from (supposedly) discriminating against disabled students.
Should huge sums of public money be spent to publically educate, say, a profoundly disabled autistic student who is non-verbal and confined to a wheelchair? That is a broad discussion not really relevant here.
My son is hearing-impaired and has an IEP. He gets minimal services due to that. He is highly gifted and, so far, has gotten nothing special for that. Still, I don't begrudge kids who are really disabled from receiving federal/state funds.