You used to play against Germany, but now you play a variety of different nations. The Germany mentality got diluted.
Their all time goal scorer and FIFA world cup all time goal scorer was from one of those nations. Their "other Nationalites" got them 4 consecutive World Cup medals, including a title and another final appearance.
The "German" mentality atm has produced Werner and Havartez as the best pure German strikers, since Birhoff and Klinsmann.
They owe those other Nations tbh, Germany could gave turned into Uruguay without them. A has been.