Again nowhere does it make any of the bogus claims you are making. You posts are pure nonsensical and totally your own fabricated cock and bull story not corroborated by any known source and are not worth a rebuttal. I wont waste anymore time.
It's been pretty well established for the last 50 years or so that when major volcanic events occur the Northern Hemisphere cools dramatically, and in less advanced times entire tribes would pull up stakes and move South or toward the ocean for survival.
Once conditions had improved they'd move back North or further inland.
It's happened repeatedly, and even in relatively recent times.
The Sakha/Yakuts clearly relocate, and the latest relocation was to waltz into Korea and Japan right there at the beginning of the Dark Ages when such a climate anomaly happened. With their superior technology they conqured both places easily and, in fact, imposed their language on both nations.
Take a look someday ~ check out how they classify Korean and Japanese. Kind of startling.
However, the Sakha/Yakuts are not Mongols ~ more correctly they are Chinese who have had adventures in India. They maintained their ethnic and genetic integrity in Japan for 1300 years. No doubt they were able to do that in India for a shorter period earlier.
On the other hand, it's pretty obvious that in Japan all the large breasted women who come by that condition naturally are descendants of the Daimyo, and not the Jomon or Yayoi (Nam Chinese).
This is something Indians wouldn't know anything about of course!