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And you know this how?
DNA evidence sorta points that direction, but it's complicated. There were likely waves of migration to North America from different groups. Most of the DNA in native people can be traced back about 13k years. The link in OP points to artifacts from 27k years ago.
However, there is some evidence of mixing with a different group.
https://www.science.org/content/article/ancient-dna-confirms-native-americans-deep-roots-north-and-south-america
This is an area of active research where a lot of old models are being thrown out over the past few decades. The idea of a single migration from Siberia, the one most of us were taught at school, is definitely wrong. Timing of the glacier movement is too convenient, and the migration would have to have happened far too quickly. What to replace it with is still up in the air.
https://en.m.wikipedia.org/wiki/Luzia_Woman
Is the article talking about this find?
Thank you for providing reasonable citations and adding to the discussion, you are appreciated