So with that mind let's answer your question on why (Nazi) German is evil and US is not:
Well, Nazi German was certainly evil, there is no doubt about this. But US was not an innocent school boy either.
1. Germany started WW2 by invading its neighbors. USA on the other hand wanted nothing to do with European power play) - so clearly Germany is the evil one;
Oh, no, US wanted nothing but dominant role in the world. They were the one first suggesting League of Nations. When they realise that they couldn't control this league, they back out. Instead, they were the one providing funds and military technologies for Germany re-arming.
2. Nazi Germany systematically massacred millions of Jewish, gypsies, communists via extermination camps. America did no such thing - so here again Germany is clearly the evil; and,
No, US had finished their mission 50 years earlier before WW2 on a far larger scale - Indians.
3. After WW2 America spent Billions of dollars under Martial Plan to help the economies of all countries in Europe, allies and foes alike. Ameroca even offered fonancial assistance to USSR but Stalin was too proud to accept. Here America is an angel.
You forget to mention those pollical, economical and military condition attached to this Martial Plan. Under this plan, everyone became Yankee's bitch.
4. USA helped China tepel Imperial Japanese forces. Without their help you'd be speaking Niponggo now;
You again forget another fact: Until Jul 1941, USA had always been the top supplier to Japan on strategic goods, such as oil, steel, machines, financial loan etc, etc. Around 60-80% of these critical supplies came from them. Without their support, Japanese had to stopped their war in 1938 by financial collapse.
5. USA helped Japan and other Asian countries aftet WW2.
The only reason they did that was to contain the communism. Just look at the geographical positions of Japan and 4 tigers. They were all critical for containing USSR and China. On the other hand, other Asian countries were not so lucky.
first, against Imperisl Japsnese invasion;
Yes, they were also the reason that we had to fight 8 years not 1 year.
2. Economically in the early 90s by ttansferring American manufacturing to China and buying Chinese products. You should be grateful!
You call that help? You forget all these were not free. Then, I also say that Chinese bought the wasted American manufacture capacity at premium price and selling Chinese products at peanut price, in fact keeping ordinary Americans' living standard in a declining income. Should they be grateful?