Thanks for your lengthy and informative post. Again, I think that your points (while true) do not preclude the concept of race. I have no doubt that geography shapes genetic destiny, but isn't that the whole point: blacks share a common geographic background, namely Africa. Now, if you're going to tell me that there are microclimes within Africa which have produced indigenous peoples remarkably similar to those produced by the Scottish Highlands, I frankly have a hard time believing it. I suspect there is far greater genetic similarity between Igbo and Meru than between Igbo and Scot. And I believe there is abundant research bearing this sort of thing out:

I'm not intelligent enough (proving that an individual's race means nothing!) to know how to link to another post, so I've just cut and pasted this one from Epicuria:

"Hundreds of studies verify the validity of race as a marker. One such study picked randomly: "We have analyzed genetic data for 326 microsatellite markers that were typed uniformly in a large multiethnic population-based sample of individuals as part of a study of the genetics of hypertension (Family Blood Pressure Program). Subjects identified themselves as belonging to one of four major racial/ethnic groups (white, African American, East Asian, and Hispanic) and were recruited from 15 different geographic locales within the United States and Taiwan. Genetic cluster analysis of the microsatellite markers produced four major clusters, which showed near-perfect correspondence with the four self-reported race/ethnicity categories. Of 3,636 subjects of varying race/ethnicity, only 5 (0.14%) showed genetic cluster membership different from their self-identified race/ethnicity. On the other hand, we detected only modest genetic differentiation between different current geographic locales within each race/ethnicity group. Thus, ancient geographic ancestry, which is highly correlated with self-identified race/ethnicity—as opposed to current residence—is the major determinant of genetic structure in the U.S. population."

I remain unconvinced by you, but thank you for taking the effort to try!