Too bad those of us of Mediterranean and other NON Anglo-Saxon heritage don’t live up to your exacting standards.
I didn't speak a word of English when I started school and my ancestors were at war with the English almost every generation from the forfeiture of the Duchy of Normandy in 1192 until 1815.
But I consider myself culturally 'anglo-saxon', since that is my intellectual language and the language of my political beliefs. Of course, since my family were French army officers and settlers in North Africa, they were already rednecks, just French-speaking ones :-)