I'd be fine with that. It would provide an incentive to care about the bottom 75th percentile along with the spoiled rich kids
The bottom 75th percentile don't advance humanity to nearly the same level. Do you think you'd have the internet or iPads if everyone was capped to the 75th percentile? No.
Beyond this, the entire point of higher education is to push those who are able to higher levels, not to drag the 75% along for the ride.
That's horrible. Smarter kids could get a better education, but they can't, because the teachers have to deal with illiterate kids that don't want to learn in the first place.
Just FYI I was dirt poor and from a crap neighborhood and qualified for and benefited from these AP classes. Not all kids who succeed only succeed because of their background.