Isn't that "we're all immigrants anyway" a recent invention by the left to justify our mass immigration levels? I know a lot of people work in the public sector here and hence tory bashing is rife and these views go along with that. I know that working for local govt these pro immigration views are almost force fed to staff & that PC culture runs from top to bottom in such organisations, I talk from experience by the way.
Aren't these views just an example of that kind of conditioning if you like?
My understanding was also that historians incorrectly perpetuated the invasion theory untill recently due to ignorance and an obsession with the classical world being the only way to civilize us. I really thought that it was now accepted as being wrong that the Romans, Saxons, Viking & Normans all had much impact on us as a people apart from a cultural movement of ideas.
Please correct me if I'm wrong.