I suggest you start reading some books young man. History is far more complex then your simple ideas.
https://www.amazon.ca/Across-Atlantic-Ice-Americas-Culture/dp/0520275780
https://en.m.wikipedia.org/wiki/Monte_Verde
https://www.britannica.com/place/Pedra-Furada
https://www.nationalgeographic.com/news/2017/04/mastodons-americas-peopling-migrations-archaeology-science/
https://en.m.wikipedia.org/wiki/Haplogroup_X_(mtDNA)
And I can go on and on......... This is a complex world with a complex history. Simple minded people like you can’t grasp these ideas.
Now go back to your video games and CNN and leave the adults have an adult conversation. YOUR GROUNDED!!!!!