Follow-up on the Oxbridge admissions debate makes the very helpful point that the statistics have identified a potential issue, not the cause of it.
The issue is that
Admission to Oxbridge of BME British students is lower than admission of white British students. Admission of Black Caribbean British students is especially low.
The reason for this is not yet clear from the published data. What a great time to set in train a proper investigation of the levers in play. Better advice might get BME students to apply for less-well subscribed courses, for example.
My anecdata: I applied to a highly-oversubscribed college and didn’t get in. My second choice was for a less popular college that had a large number of students studying my subject. I did get in to Balliol, one of the first colleges to accept BME students, to some ridicule.