That's a bizarre theory, but who knows?
The idea that Native Americans are descended from ancient Jews, Egyptians, or Greeks has been a controversial one for hundreds of years. James Adair, an 18th century settler who traded with Native Americans for 40 years, wrote that their language, customs, and social structures were similar to those of the Israelites.
He wrote in his book “The History of the American Indians”: “It is a very difficult thing to divest ourselves, not to say, other persons, of prejudices and favourite opinions, and I expect to be censured by some for opposing commonly received sentiments, or for meddling with a dispute agitated among the learned ever since the first discovery of America.”
More here