In 1066 the vikings were beaten in the north, by the Saxons, at Stamford Bridge.
If 30% of the north has paddy blood as you say, that still leaves 70% that doesn't then i take it.
We have had "mass migration throughout England," you say, but there are no Saxons in the North.
When the mines opened up in Wales you say "mass migration" from England went there. So if we think of this logically, as in the Taffs are going to be working there, how many English actually travelled there? You state "mass," that to me says thousands. Frankly i doubt if more then a handful truly went there. Where do you come by this information, Im more the willing to eat humble pie, but it just does not add up what you are saying here.
The crux of your arguement is, if someone such as myself can go back a number of generations and discover that their blood line is pure Anglo-Saxon; I/we should feel ashamed of that and cower down as we are "Aryan shit," as you state. That is the point of your response i take it, as i see no manner of you championing England, even if it is a state of mind, so what. Is that not better then being full of self-hating, looking to knock any positivity in actually being proud of being English.
If someone is a half paddy, the odds are they would call themselves English, and good on them for that.
If someone was half Jock, they would still class themselves as Scottish ive found over the years.