Nazism, an incurable wound for Germany?

As we all know, Germany was in the 30's and 40' the home for a new system and way of life, that had as consequence the biggest and most painful genocide in the history of humanity. The world would never forget the "Holocaust". Even today, seventy years later, Germans take on the nice legacy their ancestors have left for them.Does the German nation feel ashamed for their past?

In January  I have been in Germany. I have met wonderful places and people. The utopian and perfect "first world", about we have always heard is Germany. No pollution, no mistakes, public transport works in a perfect way, there is almost no poverty. I can talk about German perfection for hours, but unfortunately this is not the topic of the article. The new and modern Germany still suffers from the mistake their ancestors have made and let them. They feel ashamed about their past. They assure they have nothing to do with that ideology. When they travel round the world, as they say they are from Germany, people immediately accuse them of being Nazis. Even teachers, workers of a German school in Argentina are asked many times by other pupils in other schools they work, if we, students of a German institution, are influenced by this ideology.

As I said, this world can not accept and forgive (not forget) Germany about their past. German people are seen around the world as completely Nazis. But I have a question for those who say that a German is a synonym for Nazi: Stalin have killed even more people than Hitler, why aren't Russian people seen as genocides?; United States is responsible for many of the disasters we have to survive with every day, why aren't they seen as "world destructor"? I am not defending Germany, but as I say, we should forgive and do not blame them for their past, forgive them, I'm not talking about forgetting.

I think Germany has came back to life with a lot of effort and work and what they have built in half century is much more what some countries have built in two centuries. But regrettably, much from that effort, work and success, that by the way they deserve, is darken by their unforgettable past.