That is what I got out of the article, too. Attraction for most people is truly innate, it is not something they can really control. If someone prefers to only date within their race, culture, whatever, that should be fine. That is their personal choice; after all you don't have to date them if you don't like their preferences.
This article just seems like more race-baiting and trying to identify a problem, and a victim class, where there really isn't one.