Scalia neither "suggested" nor "endorsed" this (as Harry Reid asserted).
Anyone with an actual brain would have recognized this as spurious from the start. The NY Daily News cover story was what sparked the original white Liberal ignorant outrage. (NBC picked it up as sloppy seconds, something at which that outlet has become quite adept.)
"SUPREME DOPE" by A. Edelman. This was bomb-throwing, which the editors at the NYDN encourage around the newsroom.
Read the transcript - Scalia was clarifying an argument which was being made. His remarks were taken way out of context, a classic pernicious journalistic practice which many writers, in this case Edelman, regularly botch.
Whether Scalia believes the proposition is not at issue - he was only pointing to it as an argument that is often made. Frankly, I agree with the argument. Blacks are socially and economically disadvantaged - white Liberals constantly harp about this, so why are they shocked when blacks turn out to be educationally disadvantaged as well?
For white Liberals to express outrage over this is intellectually dishonest and also blows their entire race narrative to hell.
Roberts helpfully weighed in by asking if the presence of black students in a physics class confers any benefit to the study of that subject (the answer is obviously "no," another hate fact which drives the Left NUTS).