You are severely distorting reality. Japan has only become powerful again after WW2 because of massive investments in the Japanese economy by the US when they were fighting the Korean war and then the Vietnam War. The Japanese economy grew tremendously ONLY because of that. And every Japanese is very well aware of that.

Same story in Western Germany; massive investments from the West to prevent them from turning to the Soviet block.

And so on. Don't oversimplify History.