The round snake eating it’s tail is found there (Celtic) and the round buildings (buildings were never built in circles in the Americas-Celtic)
Incas, other Peruvians, and the Spanish when they arrived, all talked about the "hair" color, AND "SKIN" color of these people, who were also VERY much taller than the Inca.
Their culture also resembles Celtic & Nordic cultures, their style of buildings for example, as well as their practice of cremation, which was unknown to native Americans..
White people with blond & red hair are also mentioned by numerous other Native American tribes. The Paiute tell of red haired "giants", that they considered evil, constantly murdering, and possibly cannibalizing the Paiutes' ancestors. Their oral history states that they banded together, cornered the white people in a cave, smoked them out and sent a volley of spears & arrows into them.
This cave was discovered by Guano miners over a hundred years ago, "Lovelock Cave" in Nevada.
It's not an agenda to say the Americas were discovered by Europeans, it's a simple matter of ancient history, and the fact that theres NO WAY we can say emphatically, that "no white person ever came to the Americas before Columbus", mainly cuz you nor I were there.
They have also found many skulls that are shaped like Europeans' skulls, not Asians, or Amerasians, from thousands of years before Columbus, giving rise to the 'Solutrean theory'.
There's even evidence of the Chinese having come to the Americas, not as Migrants to become future Native Americans, like their fellow Asians that did Migrate here to stay, but as skilled Seamen and explorers.
SO don't dispute something you have no real way of saying you know for certain. Instead just find it thrilling that we HAVENT discovered everything yet, and that there's SO much more history just waiting out there for us to learn..
...and as for your neanderthal theory, I don't prescribe to Darwinism. The only explanation for the large skulls, and bones found, that I need, comes from the Bible, the Book of Enoch, and the oral history of basically EVERY ancient people from across the world - Giants. Real giants, not the crap Hollywood doles out. People that were from 8 ft tall, to a little taller.
The blue-eyes gene, has also been found to be non-existent in mankinds' oldest DNA, it wasn't introduced into our DNA until much later.
The descriptions of most of these "giants", by the ancient native americans, and other civilizations, were usually that they were "white skinned, with blond, and red hair, blue and green eyes".., and that as a rule, most were usually the epitome of evil, bad people.. That's not a feather in white peoples' cap, it doesn't prove supremacy, if anything it denotes that many come from lineages of evil people..
Personally when I think about the word "gentile", that even Jesus used to distinguish between the gentiles, and Jewish people,..and that He commented on 'whether they were able to receive salvation, or not', makes me think the 'Gentiles' of the Bible, were the watered down descendants of the Giants(Nephilim). ..That after so many offspring with normal women, after so many generations, the ancient DNA that caused the deformations like gigantism, had been replaced with more normal Dna, hence their souls were purer and able to receive the "salvation" Christ talked about. Mind you obviously I'm a Christian, but also one with a speculative mind and interest in ancient, antedeluvian history.