Well, I'd refer you to this book: https://www.amazon.com/Irish-Became-White-Routledge-Classics/dp/0415963095 https://www.amazon.com/Irish-Became-White-Routledge

Well, I'd refer you to this book: https://www.amazon.com/Irish-Became-White-Routledge-Classics/dp/0415963095 https://www.amazon.com/Irish-Became-White-Routledge-Classics... You are free to disagree with the thesis, of course.