No it wasn't. It was just another case of the inferior offspring of great men losing all their forefathers had won. A trend that has continued to this day.
Ireland was different. Between 1801 and 1922 it wasn't a mere unimportant, second-rate colony like America, or the Jewel in the Crown of colonies, India. It wasn't a colony. Ireland was an actual part of the United Kingdom. People travelling on a ship from Liverpool to Dublin or from Bristol to Cork were travelling within their own country. The British Empire also belonged to Ireland and it was partly run and policed by Irishmen. The Paddies played as much a part in the running and controlling of the British Empire as the English, Scottish and Welsh did. You can't put Ireland in the same bracket as Yankeeland, Canada, India, Australia, Kenya, Malta, Cyprus, Ceylon and the rest. Those places were never a part of the United Kingdom itself. They were colonies.