I agree this is true for the Ivy/Stanford etc elite colleges.
But the fact is, that most of the students at any of these BS attend excellent, selective colleges. Ivies are not the only excellent colleges. I do think it’s extremely hard to get into Ivy/Stanford from anywhere, unless you are a recruited athlete.
My concern is more about FA. Do you think BS students get into selective colleges if they need merit aid, or are the schools assuming BS applicants would be full-pay? Is this playing ground level with public school students?