Do the Black Irish have Basque ancestry?

For many years, I have examined the possibility of Basque ancestry among the Black Irish.

When the Yamnaya invaded the Basques, they pretty much replaced the previous y-DNA gene pool with their then previously absent R1b.

Could it be that some of them took their new families to Ireland or that some of their offspring migrated there?

Similar to the Vikings bringing Celtic women and their offspring to southern Scandinavia?

Basques tend to have dark hair and pale skin.

Where did the original Basques come from?

As of 2016, 10,100 Irish nationals of African descent referred to themselves as “Black Irish” in the national census. The term “Black Irish” is sometimes used outside Ireland to refer to Irish people with black hair and dark eyes. One theory is that they are descendants of Spanish traders or of the few sailors of the Spanish Armada who were shipwrecked on Ireland’s west coast, but there is little evidence for this.

The term Black Irish describes “an Irish person, or one of Irish ancestry, having dark hair and a dark complexion or eyes”, used primarily in the 19th and 20th centuries by Irish-Americans as part of a broader “performative ethnic identity” of Irishness.

Two genetic studies conducted in the 2010s found little if any Spanish traces in Irish DNA, with population geneticist Dan Bradley of Trinity College Dublin rejecting the Spanish origin myth.

The existence of an especially strong genetic association between the Irish and the Basques was first challenged in 2005, and in 2007 scientists began looking at the possibility of a more recent Mesolithic- or even Neolithic-era entrance of R1b into Europe. A new study published in 2010 by Balaresque et al. implies either a Mesolithic- or Neolithic- (not Paleolithic-) era entrance of R1b into Europe. Unlike previous studies, large sections of autosomal DNA were analyzed in addition to paternal Y-DNA markers. They detected an autosomal component present in modern Europeans which was not present in Neolithic or Mesolithic Europeans, and which would have been introduced into Europe with paternal lineages R1b and R1a, as well as the Indo-European languages. This genetic component, labelled as “Yamnaya” in the studies, then mixed to varying degrees with earlier Mesolithic hunter-gatherer and Neolithic farmer populations already existing in western Europe.