I understand the point you're making - that we must not be afraid to talk about genetic differences between people. While I respect the perspective, there's a

I understand the point you're making - that we must not be afraid to talk about genetic differences between people. While I respect the perspective, there's a couple critical "implementation issues": 1. I've never heard of a case like you used in your example, of everyone from an island having sleep apnea which leads to lower IQ. The obstacles are that we've never seen a universal population wide disease like that (before you bring up sickle cell or something hold on), we've never seen such a disease consistently lead to "employable" side effects (say, intelligence or charisma or something), and we've just never had such a homogeneous population anyway. 2. The CPAP issue is open to literally anyone, and so what's the point in trying to figure out whether a given population is genetically predisposed to sleep apnea? Just continue to treat at an individual level (by providing universal access to healthcare) It boils down to: separating populations to find cause of "issue" doesn't actually generate any useful information but does create fantastic weapons for racists. Instead, just persuing socially liberal policies such as universal education and healthcare do a great job of evening the scales for us.