Secret: Why did Hitler commit suicide and Hirohito surrender?

Hitler was the supreme head of Germany. If he is caught, he will be tried and hanged. Hitler didn't want to be blamed by others, so he chose to commit suicide. Hirohito is the culprit, but this boy is treacherous and insidious. After the war, the American authorities, which monopolized the occupation of Japan and presided over the Tokyo trial, deliberately avoided the royal family and tried only tojo hideki and others when investigating the responsibility of Japanese war criminals. The important reason is that Japan didn't really "surrender unconditionally" like Germany, but when it accepted the Potsdam Proclamation, it clearly stated that it wanted to retain the emperor system and obtained the consent of the United States. In order to shirk its responsibility, the Japanese ruling clique after the war also needed tojo hideki and others to play the role of No.1 war criminal in court. So I want to surrender because someone can take the fall for him.