Ha - "In the UK, Africans score the highest" so much for your argument that IQ test is racist! From what I saw on the newer IQ tests, most are pattern recognition based and nothing to do with Western culture. And if you want to trace everything to its origins - remember don't use the Autobahn when you are in Germany, as it was promoted by Hitler. And we should throw out US constitution as it only allowed 3/5 votes for slaves.If you believe there's any possibility that removing standardized testing requirements or making them pass/fail could negatively impact American science and medicine in the long term, you have an extremely poor understanding of what those exams test. How about this. Go take every person who got 520+ on the MCAT but no med school and put them in the clinic. See how they do.
I need you to read up on IQ history. Yes in the US, Asians score on average better than white people. That's not the case in other parts of the world. In the UK, Africans score the highest. IQ score is a reflection of access, opportunity, and successful assimilation to Western culture. In order for it to have any value, all cultures around the world must have the exact same values wrt "intellect", and must all have the same frame of reference regarding what's being asked. In a society where buildings are round, you're more likely to observe perceived deficits is understanding 3D shapes. Doesn't make them less intelligent. Tl;dr IQ is useless. And given it's eugenics origins (which you should educate yourself on), it should not be used.
And what's your suggestion for measuring an applicant's potential as a medical researcher (not just a doctor) to replace MCAT and GPA?