I think Germany is a decent country acctually, acting mature and playing nice. The thing is, this is what we expect from a country.
If by "decent" one means "peaceful, democratic, non-nationalistic", it was utter defeat in WW2 which pounded this into the collective German conscious.
These comments got me thinking, how would Germany behave, see itself and be seen by others in a world without the Third Reich, and what would be the position of the German language in the world.
Some basics, there was no "alt. WWII", no Anschluss, but there was a short victorious war against Poland in the late thirties early forties, which gave Germany the Corridor and Danzig, beside that the demilitarisation of the Rhineland was ended, and Saarland was reunited with Germany. Czechoslovakia survived and it German minority was never deported. North Europe and Central Europe is united in some kind of EFTA like structure.
I think that Germany would look something like France. Arrogant and sure of themselves, believing that Germany is the centre of the civilised world, but Germany wouldn't have Frances military adventurism, mostly because the lack of a German "Francophone" of former colonies. Language like German would likely have the same status in Scandinavia, Netherland, East and Central Europe (let's call it the Germansphere for short), that France have in North Africa; First foreign language*. The effect of that would be devastaving for the Globalisation, English would lack much of the strong stand it have in OTL, which would make it position as Lingua Franca much less stable. Scientific it would also place Germany in a much different situation, with academic in the Germansphere seek out German universities and sources instead of english ones, which strengthen Germanys position as a scientific centre.
*the large German minorities in many of these countries strengthen German position as first foreign language.