In most places, including Ireland, they were displaced, with some assimilation, by the Yamnaya people. Most of the male lineages were extinguished, the genomic contribution from the previous wave is mainly through the female line. https://en.wikipedia.org/wiki/Yamnaya_culture
It was the Yamnaya who brought Indo-European languages to Europe, and Ireland. Resemblances between the Irish language and Semitic languages are coincidental.
In most places, including Ireland, they were displaced, with some assimilation, by the Yamnaya people. Most of the male lineages were extinguished, the genomic contribution from the previous wave is mainly through the female line. https://en.wikipedia.org/wiki/Yamnaya_culture
It was the Yamnaya who brought Indo-European languages to Europe, and Ireland. Resemblances between the Irish language and Semitic languages are coincidental.