I have faith in the Aryan self-preservation instinct.
Nope, it’s gone, and the numbers are vastly against the Germans. Forget overall percentages, most Germans are over 40, the invaders average about 25. In the 20-30 cohort (the fighters), the Muslims already outnumber Germans in key urban districts which are the centers of gravity. The outlying German villages can be plucked like cherries at leisure.