And, of course, a lot of Scots are descended from the Irish when the kingdom of Dál Riada was formed, circa 500 - 850, which is how a Goidelic language is found in Scotland. There were also Scots who went back to Ireland as plantation Scots and while there is a lot of unpleasant history there (colonialism and suppression of the native Irish population) it is also true that a certain amount of intermingling, shall we say, occurred. Then there were Irish people who migrated to Scotland following the Famine, in search of opportunities. So, at least on the west coast of Scotland, the two groups are very much inter-twined. Both groups were, frankly, the victims of colonial oppression by the English. On a much happier note, both groups have strong indigenous textile traditions.