My guess would be that Asians are over-represented due mostly to cultural differences pertaining to parental expectations. But that also hints a problem, albei

My guess would be that Asians are over-represented due mostly to cultural differences pertaining to parental expectations. But that also hints a problem, albeit not one caused by the admissions process. The problem might just be "some parents suck", but I'd hope we can mitigate that impact somehow. Students underachieving (relatively) solely because their parents are mediocre (or worse) isn't ideal. The solution to this might be enhancing primary school and related enrichment so kids with crap parents can also succeed. But that doesn't mean the admissions process isn't contributing by ignoring other measures of student potential.