The following video and article have been brought to my attention in my Facebook group. If there is anything that you disagree with, please join People with Rhesus Negative Bloodtype and comment there.
~ Mike Dammann
Everything you know about British and Irish ancestry is wrong. Our ancestors were Basques, not Celts. The Celts were not wiped out by the Anglo-Saxons, in fact neither had much impact on the genetic stock of these islands
Source: Myths of British ancestry