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Interesting fact about lactose tolerance is that it's quite a recent genetic mutation, originating only about 10,000 years ago in Europe. It's a very common trait in Northern-Europeans, and also somewhat common in some other parts in the world such as Ethiopia (which probably evolved independently). I'd argue that lactose intolerance is not really a "genetic condition" that "affects" people as the article claims, it's an advantage a relatively small number of people have.
Anyhow, I think the content of this article is somewhat less ludicrous as the title may lead you to believe, although I strongly dislike calling it "racist", there probably is a worthwhile discussion to be had here about the fairness of increasing the cost of living for people who lack lactose tolerance, especially given the massive subsidies diary farmers get from the gov't in both Europe and the US.
I really wish they hadn't put "racist" in the title though; it poisons the discussion.