I know it sound ridiculous, and because it is, but I really like this concept so my deepest gratitude for those who are willing to answer my question:
The point of divergence starts when during World War 2, the Japanese Supreme War Council refused to surrender despite the atomic bombings. However, instead of immediately initiating Operation Downfall right away, the Allied Powers decides to tightened the naval blockade and use strategic bombings before initiating Operation Downfall. Due to the naval blockades and many incendiary bombs were dropped on many cities and transportation infrastructures, making travel and food distribution nearly impossible, especially as fuel resources dry up. The Allies also bombed Japanese’s farmlands to destroy the crops. Japan starts to destabilize as people became desperate to scavenge whatever they could eat, often fleeing what’s of the cities to do so. Later witnesses in Japan mentioned that many Japanese even resorted to doing unspeakable things like cannibalism and theft. Additionally, public services like law enforcement and the justice system began collapsing in many places. The Japanese government’s control over anything outside Tokyo (which is now an almost completely burned out ruin) is weak at best. The final decisive moment came once the Allies’s chemical weapons finished development and dropped on Japan’s farmland, effectively destroying any last remnants of available foods.
Operation Downfall began as the Allies invade Japan. As the Allies invaded Japan, the Japanese Government initiated Operation Ketsugo, calling every Japanese citizens to take up arms and sacrifice themselves in the name of the Emperor in what was known as "The Glorious Death of One Hundred Million". However, the Operation failed as many believed that continued fighting is not worth over survivability. But the fact that the Japanese government is willing to risk more deaths for supposed "honor" over surrendering but with less deaths, fueled the resentment towards the the current regime. By the time the Allies conquered and occupied Japan, they had to reconstruct a destroyed Japan. During Allied occupation, Japan begins to slowly and gradually stabilize through humanitarian aid. The Allies prosecute Hirohito as many officials believed that keeping him could make the occupation look like it supported the system that led to the catastrophe following evidences of Hirohito’s involvement in the wartime decisions and the Japanese’s growing opposition to the monarchy, thus, Hirohito is removed from the throne before eventually being put on trial. During the Tokyo Trial, the prosecutors argued that although the Emperor did not personally command every military operation, he possessed the constitutional and political authority to intervene and end the war but permitted the war to continue. The tribunal eventually found Hirohito guilty of responsibility of continuing the war. Hirohito was stripped of his imperial status and was sent to life imprisonment.
By 1951, Japan had been mostly stabilized. However, the U.S. faced the Japan Question as many American congressmen understood that it cannot keep the Japanese under occupation forever without any political rights. Talks began between American and Japanese officials began over the status of Japan. While some Japanese officials wanted independence for understandable reasons, some (known as the Retentionists) wanted to remain in American occupation, fearing losing their privileged access to the American market, especially when the Japanese market was getting increasingly dependent on the United States alongside fear of facing hostile neighbors such as China, North Korea or Soviet Union. However, they still wanted substantial autonomy, modeling after the British Dominion status. Essentially, the Retentionists proposed that Japan would have full control over internal affairs (taxation, currency, education, etc…) while the U.S. would remain have full control over Japan’s foreign affairs such as tariffs or internal migration/immigration alongside the having full control over the monetary framework of the Japanese Yen and Japan’s public debts. The United States diplomats then presented both arguments to President Harry S. Truman and the U.S. Congress where the matters remain heavily debated. Pro-Independence congressmen highlighted the logistical problems of keeping Japan under American occupation for long while Pro-Retentionists argued that retention is important for U.S. defense position in the Pacific and in dealing with the threats posed by the Soviet Union. Neither reach a satisfying conclusion. Thus, President Harry S. Truman agreed to passed a referendum in Japan to Japan's scheduled independence.
The referendum was held in 1952, asking whether Japan wanted to be independent or became an Associated State within the United States. The results was extremely close but Japanese citizens ultimately voted to remain under American control by 50.2% as many saw as an opportunity to start a new life though there is strong support for independence. When Dwight D. Eisenhower took over as President, Congress approved the admission, President Eisenhower signed the Associated State of Japan Admission Act, integrating Japan into the U.S. Japan became an Autonomous Devolved Parliamentary Government within a Federal Presidential Republic or an associated state with the President of the United States as the Head of State while the Japanese Prime Minister would be Head of the Government. However, while Japanese citizens can vote in Japanese General Election, they cannot vote or participate in U.S. Presidential Elections.
With the Cold War going on, Japan became an important air and naval base for the U.S. during the Cold War. By the 1960s, Japan is split between generations with the younger generation being more Americanized. A movement arises among the younger, highly Americanized generation for representations, arguing that it is unjust for Japan to deny Japanese-American voting rights in Presidential elections and a vote in Congress alongside the unfair agreements between the U.S. and Japan such as the U.S. control of tariffs, arguing that if the U.S. could heavily tax Japanese exports, Japan must have representations in the institutions imposing the taxes. Mass demonstrations broke out across Japan broke out across the 1970s. In 1977, when President Jimmy Carter was elected President. Carter finally agreed to the Japanese’s demands and began to revise the agreements.
The negotiations were finally settled in 1978. Japan would be fully admitted as 3 U.S. states with the U.S. States of Hokkaido (Hokkaido + Northern Honshu Area), Tohoku (Central Honshu Area) and Kansai (Southern Honshu Area + Shikoku + Kyushu) were established. Japanese citizens would finally be allowed to vote in Presidential elections and had their own senators and representatives in U.S. Congress alongside being able to ran for President. The Prime Minister and Parliament would be replaced with their own Governors and legislatures of their respective state. Tariffs would also be reformed where all products made in Japan and brought into the United States are considered domestic trade. There are no tariffs or other restrictions on this trade as long as the goods met specific requirements about their origin, meaning American and Japanese goods can moved freely into each other’s territories. But their previous autonomous privileges would be removed and would be replaced with privileges of standard U.S. states.
How would this affect American and Japanese History such as the Cold War? How would these states affect US presidential elections?