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ancient HuaXia/Dong Yi DNA is austro? hardly, nor is the modern population.
How do you know what the ancient Huaxia or Dongyi are like? Have you ever read these articles about the skulls they found in that era, which approximates the skulls of modern Chinese of the south? Also, to be all objective, there isn't that big a difference between someone from Henan and someone from Vietnam in the bigger picture. You make it seem like they are from different planets. You're being idiotic.
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my dad's side of the family exhibits pure HuaXia(long face, narrow nose, long legs, broad shoulders, thin lips, rectangular shaped skull) while my mom's side exhibits clear Dong yi features(small eyes, round skull,long legs, flatter face,pale skin)
Didn't you say your dad is half Manchu? Also, given the historical fact that northern China has seen it's population depleteted many times due to famine, massacre, and southern migration, and settlement by the Altaic races, how can you be sure that what you think you describe is that of the Huaxia or Dongyi?
Also, most of the Hakka I've seen look more Viet than Beijinger. If Hakka are so pure, then the original Hua were closer genetically to Vietnamese because Hakka clusters with the south. Or Hakka maybe are a mix of south and north.
You also seem to think that there is a correlation between appearance and genetics, and that's not always the case.
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austros on the other hand, definitely do not have any of those features.
Who are these austros you keep talking about? There is any standard to your definition?
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migration from the south into the north is not as rare as you think. Either way, that sample takes from ONE person in Henan without regard to his ancestry or how many generations he has been there.
One person?

Da Nile is a big river hard to get over.
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have you seen northern Chinese and your own people? or even Southern Chinese and your own people
My own people??? What do you think I am?

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i am not anti-southern either. i just feel it was a mistake not to clean up southern China before migration into it.
Well, the north is better? When Chu took samples from Beijing, Inner Mongolia, Gansu, and Manchuria to represent northern Chinese, it's kind of weird. Beijing was basically established by the Mongols and it's population is basically descended from all of the Altaics (Jurchen, Toba, Mongol). Yes, these people are the real Chinese. To think that mixed Altaics being more Chinese than mixed Yue is odd. What an irony that the historic enemies of the Chinese have now become the epitome of what's Chinese.
I just find it funny how almost of the nantionalists here are all part Manchu or Mongol, and try to create the impression that most Chinese have a great love of the Altaic peoples, when to most Chinese Mongols are more foreign than Vietnamese.