I don’t see how the U.S. could have “contained” the Japanese without engaging in hostile actions against their forces. My first reaction to reading the OP was “Even if the U.S. didn’t want to go to war, like it or not, war is exactly what they had!”.
Never-the-less, China couldn’t have defeated Japan either, and Japan had, by that point, occupied a lot of the areas in China that provide plenty of raw materials the Home Islands needed.
Does he give details? Historically, Japan maintained their economy well into late '44, even with all the losses a “hot” war brought along with it. I’m no expert, but I am dubious about the above claim.
Historically (like with Britain in India), a more organized and “advanced” military force can occupy a large population for quite a while.
Only if they are forced to expend that oil at wartime rates. A “cold war” would require much less, IMO.
Incorrect. The Japanese merchant fleet (6 million tons) was large enough for Japan’s peacetime needs. cite Where it fell short is when the military requisitioned tonnage for military operations, and losses to enemy activity began to mount. The Japanese also built (or seized) another 2 million tons (totaling 33% of the size of the pre-war merchant fleet) over the next three years.
Those senior “moderate” elements would have lost a lot of political clout had the pro-war faction been proven “right” with their strategic war goals. This “coup from within” would NOT have happened, IMO.
IMO, the Japanese, if left unchecked, could have built a self sufficient economy with what they had conquered by April/May of '42. No amount of economic sanctions (even including any assumed internal inefficiencies with their own “unbalanced” military spending) was going to cause their empire to collapse. I don’t know why the professor feels that Japan could not have occupied a colonial empire for long, even though many European nations have done just that in those very same regions.
Historically, even with a policy of total wartime blockade on Japan (which goes much further than economic sanctions and “cold war” style diplomatic relationships) , it still took three whole years of submarine warfare and island hopping invasions (to put the Home Islands within range of land based airpower) to achieve it. Without military force? Can’t be done.
Even if you accept that the U.S. “defeated” the U.S.S.R. by economic means, it still took nearly 50 years to do so. How much time does the professor think it would take for Japan to fall? Why is 50 years of “cold war” better than 4 years of “hot” war?
While the attitude of “war is never the [best] answer” sounds ideal, the reality is, in short, for diplomacy to work, both parties must want it to work. For war to happen, you only need one side to pursue that goal to achieve it.