DNA reveals EVERYTHING. Where people came from, who they are related to, everything. I remember reading a DNA study on the ethnic minorities of South and Southwest China, and all of those ethnic groups were pure blooded 100% Mongoloid, with exception of the Hui (Chinese Muslims whom had 5-10% West Asian DNA). I remember reading Miao's were genetically related to the Yao people (Mien). No Nordic Caucasoid blood in the Miao at all. So take that white caucasian wannabe theory somewhere else, cause everyone on Asiafinest, and the whole world is just laughing at you people. Be proud of who you are. Miaos have a long rich history and a beautiful culture.
As far as Mongolians are concerned, there have been numerous studies of descendants of Genghis Khan, and his descendants carry the "Y Chromosome" that ranges from China all the way to England. Miao's of China do not have that Y Chromosome. The highest concentration and population of the "Y Chromosome" outside of Mongolia is found among the
HAZARA TRIBE OF AFGHANISTAN. Just because you guys had a Miao princess named "Mao Gai Lia" does not mean you are from Mongolia

And also Tat-C is the Chromosome of the Ancient Mongolians, Xiongnu, and Siberian people such as the Yakut. And believe it or not Tat-C has been found among the Sami(Mongolic looking people) of Northern Finland, Miaos did not even have the Tat-C chromosome in their DNA!!!! Which means Miaos are not descendants of these people.
Mongolians dont even refer to themselves as Mongolians. Mongolia is an English word. They refer to themselves by their tribe name such as Sartul's, Oirat's Khalka's, etc. All those tribes speak their own dialect of the Mongolian language.
So to wrap it up, the blonde or other light colored hair the Miao possesses does not stem from ancient caucasoid ancestry, as
DNA proved that Miaos do not have any!!!! As I stated earlier, Pacific Islanders such as Samoans, and Tongans also have the same colored hair as the Miao. Australian aboriginees also have blonde hair. Scientist to this day still do not have a concrete theory on why these peoples hair are blonde, but one thing that is concrete is that all Polynesians are descendants of Southeast Asians and Southern Chinese.
Be proud of who you are. No need to go claiming relations to other ethnic groups without any evidence. It only makes you people look ignorant.