LOL okay, so patriotic Germans should feel guilt because... they're being patriotic? Should they feel guilt just because little you is scared of a little German nationalism?
Please, your bias is showing, it's people like you who keep reminding people that the evil Germans were nazies, and in doing so you contribute to the still very much existing level of hate that young Germans are exposed to, especially in England where we're actually talking about hate-crime.
Also, I've studied the Great War and I know as much as to say that claiming it to be the fault of Germany moreso than Russia, France, Italy, Serbia or Austria-Hungary is ridiculous. Its like the Entente blaming all of the costs of war on the Germans in the Treaty of Versailles, this was the French and British getting their revenge on the Germans whom they had so much trouble fighting, and you're doing the same.