I love it.. I always love to point out to people who claim they are 'pure' anything that genetically, the differences we identify as racial (skin color, hair color, etc) are smaller than the genetic differences that separate individuals, technically, if you trace everyone back, we all are just mutts. :->
Whatever floats your boat, but it's lost on me how that renders the differences trivial. I've never been able to figure out how a full standard deviation difference in average intelligence between two groups is insignificant, and I certainly can't tell you with a straight face that a two standard deviation average difference is.