Not at all, there arent a "Basque people" differenced. The ancient basques were sheperds of the Pyrinnees who obtained celtic lands from the romans (they were their allies) so they were mixed with the defeated celts (by the romans) as the called "nervii" of NE Spain. They adopted the celt culture but only maintained their language. Nowadays there arent almost any difference between basques and other spaniards.
They are only proto indoeuropeans, as the ancient Picts and so.
But there are a lot of theories to explain this, one strange said that they can come from the deserctionist of the Hannibal armies who didnt cross the Pyrennes and Alps and they would become sheperds in the mouintains stablishing themselves there. This could explain the absence of basque culture ...until they robbed the celtic one in the Rome time. And it could explain too other language and racial issues. But it is not an approved theory.
Well the most of population of latin american have not spanish ancestors. Spain was a really little country with few population to assimilate in that way the hughe population of South America. Remember how only a few hundreds of spaniard were sent to conquer Aztec empire or Inca. After conquest they were only governor elite ...not only women rapers :D. It was a mix culture in latin america, but not so big to say that almost all south americans have europeans ancestors.
About the celt problem in the thread, I think that the celts is a culture and fashion of a determinated time in ancient europe, not only a ethnic stuff. But the celts in british islands, Spain and Gaul came from the Bronze atlantic culture, the protocelts, I mean it can be true that there wasnt invasions, only a long way from the bronze age that finally produced what we identify as celt culture. This could explain the genetic similarities between iberians and ancient britons, a *"common bottom" in bronze age in all the atlantic shore: proto celts / pre indoeropeans.
Sorry about my english.
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