“It appears that you thought the only plane the Japs operated was the Zero.”
Does it ever occur to you that this is an unwarranted assumption?
“However the dictatorship of the Shogunate was similar to that of Imperial Japan”
In what way? Local control didn’t go away just because of the Shogunate. Meiji actually increased the centralization of the state, not decreasing it. Feudal Japan was far more decentralized.
“shows that a blockade was the least favorable of the COAs available”
Given that they undertook a blockade and did not undertake an invasion demonstrates that Blockade was preferable to invasion.
There was no invasion because there was the bomb. There was no blockade as you have already pointed out. Even Ike said so. A blockade may have been preferable to the invasion, but the fact it was planned and in its preparatory phases shows that ending the war quickly was a primary goal of the Allies. Blockade wasn't going to get it done.
“It appears that you thought the only plane the Japs operated was the Zero.” Does it ever occur to you that this is an unwarranted assumption?
Of course, however your reference to it concludes since there were no Zeros, there was no air threat. Further referencing Zeros meant 'wooden rocket planes' were the main kamikaze threat since there was a lack of Zeros.