To be fair to the US, the reason Japan attacked the US at Pearl Harbor was because the US backed it into a corner over the Rape of Nanking. Japan had the option of ceasing its war in China voluntarily, or running out of oil and ceasing it involuntarily. Or of invading US-controlled sources of oil in the Pacific.
Which is not to say that fascists in the US were not trying their damned hardest to seize power. [1]
Nobody was prosecuted for their involvement in the plot, of course.
The 'Business Plot' took place almost a decade earlier, the Rape of Nanking happened in the winter of 37/38 and was in a horrific way just one more step in the Japanese expansion strategy.
Pearl Harbor happened almost to the day 4 years later, in December of 1941. The main reason it happened as far as I understand it is because the Japanese had their sight on resources in the Dutch East Indies (notably: oil) and the US had effectively blocked them from doing so. There were other reasons besides, but the Rape of Nanking had as far as I know nothing to do with it in a direct cause-and-effect relationship.
So I think you are mixing up a bunch of unrelated historical facts to arrive at the wrong conclusion.
Incidentally, the attack on Pearl Harbor was probably one of the biggest own goals in the whole of WWII, it was meant to dissuade the US and to force it further into isolationism, instead it galvanized the nation into becoming one of the major players at the end of WWII. It also sped up the development of atomic weapons, just two months before Pearl Harbor there was the beginnings of the Manhattan Project but it was still very low-key, after the declaration of war against Japan and Germany it all went into overdrive.
The facts are entirely related. FDR was keen on opposing fascism, but neither Congress, nor the US public had much interest in it. The atrocities in China galvanized support for anti-Japanese policies, which eventually terminated in the oil embargo, which precipitated Pearl Harbor.
If Japan has only attacked the DEI, the US was unlikely to have sat around on its hands - and it would have had both a Pacific fleet, and the Phillipines to operate it from. Japan's imperial ambitions were unattainable from the moment that the oil embargo was in place.
You are making a direct link between Pearl Harbor and the Rape of Nanking:
> the reason Japan attacked the US at Pearl Harbor was because the US backed it into a corner over the Rape of Nanking.
The timing doesn't work, and no historian of that era that I'm aware of has made such a direct link, though, of course, like everything it is connected but only in the much larger scheme of things. Historians generally seem to agree on the fact that the Japanese invasion of French Indochina to try to embargo all imports (including US imports) into China is what led to the oil embargo.
You're welcome to persist in your own view of history of course, but the fact that the Rape of Nanking preceded Pearl Harbor and the Oil Embargo that led up to it does not automatically mean that the one caused the other.
The Rape of Nanking was not the cause of the attack on Pearl Harbor. Japan’s expansionism was. The US was trying to contain Japan even before the Nanking massacre.
The US didnt control the oil Japan was after, the Netherlands and the UK controlled it.
Which is not to say that fascists in the US were not trying their damned hardest to seize power. [1]
Nobody was prosecuted for their involvement in the plot, of course.
[1] https://en.wikipedia.org/wiki/Business_Plot