No one, even the Indigenous people, Native Americans, Indians, Red Men, etc… came over the land bridge from Siberia. This includes the Eskimos also. I don’t know any other names for them, sorry.
Everyone “historically” came from somewhere else on the planet. So, if you want to send people back to where they came from … well, good luck!
The 2000 census allowed people to put down which ancestry group they came from. There were 49,200,000 Germans, 41,285,000 Black or African Americans, 35,789,000 Irish, 31,800,000 Mexicans, 26,900,000 English, 19,900,000 Americans, 17,550,000 Italians, 9,740,000 Polish, 9,136,000 French, 5,700,000 Scottish, 4,900,000 American Indian or Alaskan Native, and 4,800,000 Dutch … and the list goes on and on…
What does this all mean? The U.S. truly is the world’s melting pot AND guess what, it is just gonna keep melting.