Good to be cautious about that source (I am a fan of Wikipedia: it's just that one needs to know how to evaluate it, esp. when controversial subjects provoke editing wars). Anyway, I spend way too much time reading about genetics, but that is a basically accurate characterization. A prominent interpretation is that, although both males and females came to Europe, male intermarriage with local females created the genetic profile. Main point here, tho, is Mideast ancestry