Solutreans maybe.
Those old timers got around more than we once thought; on land, water and ice. I think the ancestors of modern native Americans came from Asia, Europe and Africa. The European and African DNA having been more or less bred out.
Maybe Solutrean, but I don’t know. None of the Solutrean points shown on Wikipedia looked close to these. The intact point in the article looked more similar to a Clovis point.
DNA shows the Solutrean hypothesis to be invalid.
The Black Current flows from Japan to South America and from there other currents push up to the Southern US
That humans came to the new world multiple times before the native Americans arrived 10-13K years ago isn’t the BIG QUESTION.
The big question is what wiped them out?
The even bigger question is, is it still around?...