Who were the Beringians?
During the interglacial maximum of the last ice age, a land called Beringia connected Asia with North America. It was a high tundra refuge that supported much life. When the ice melted and ocean rose, it became what is now the Bering strait.
The now extinct ancient Beringians lived in Beringia for about 10,000 years seemingly constrained from migrating into the Americas by ice sheets according to the Beringian standstill model. This isolation developed them into a unique seperate race. When the ice sheets melted, they were able to migrate into the American land mass. These are the indigenous first people of the lands now called America.
The Beringians descend from north Eurasians who lived in Siberia. See this full study in Nature about the DNA analysis. The original people in Siberia also migrated West into northern Europe such as Scandinavia. Modern Europeans and ancient Beringians were certainly different but share some similarities from their common ancestry. They were caucasoid rather than mongoloid.
The Beringians were later followed into America by larger populations of migrating mongoloids. Archeogenetics and passed down stories of the Amerindians show that mongoloids outnumbered and eventually exterminated the Beringians in a total genocide. Some of the Beringian women were taken for sex slaves and breeding as is evident in some Amerindian DNA.
Amerindians show a strong mongoloid appearance with some admixture of caucasoid Eurasian, consistent with the maternal line DNA from Beringians.
Demographics is destiny and history repeats
The stone aged Amerindian people killed and ate every horse on the continent, had no steel, no written language, and never invented the wheel. For centuries they conquered and killed each other. A later wave of technologically and culturally advanced Europeans came to North America in the sixteenth and seventeenth centuries to eventually conquer and dominate them after attempts to coexist with them failed. The White people gradually built a large and prosperous homeland for their people called America. They formalized their nation as a white ethnostate only for West Europeans (Whites) in the landmark 1790 Naturalization act. They were generally very careful about who they would allow to immigrate into America. They did not expel all the imported Africans and remaining Amerindians but rather humanely segregated them to preserve the races.
In the early twentieth century, a highly organized Asiatic minority infiltrated America's government, churches, education, media and financial system. With this power and influence, they were able to provoke wars between Europeans that killed half the world's White population. Then they convinced them to stop having children and open their borders to hoardes of non-White people.
Notably after John F. Kennedy was assassinated, the new Jewish president LBJ signed two acts that removed protections for the White race the nation was formed to protect. The Hart-Celler Act opened immigration to any race which resulted in nearly all future immigration being non-White. The Civil Rights Act removed all internal protections for the White heritage Americans by forcing them to confer the same rights to nons and subsidize them. Only about half of the US is now White, and all the current trends show that Whites will soon become a shrinking minority.
The extermination of the Beringians is only one of many examples throughout history of Europeans being exterminated or genocided by the new majority. Mongols genocided millions of Whites in Russia. Jewish Bolsheviks killed tens of millions of White Russians in the Holodomor and Red Terror after they took power. Black Haitians killed every White and mixed person in Haiti. Blacks are now genociding Whites in Rhodesia (Zimbabwe) and South Africa although international pressure from still nominally White America and Europe are holding it back. America is on the same path with Blacks killing Whites at about eight times the rate of the reverse.
History proves that land belongs to those strong enough to take it and determined enough to hold onto it. Other than a home field defensive advantage, whether a people is indigenous to a place has no bearing on demography. If the people of a land are not determined to defend it and even allow invaders into the land, their destiny is doomed.