I think you are a little too naive on Japan. Not too long ago (I think it was 3 or 4 years ago), Japanese gov hired a team of legal experts to find ways under the mutual defense treaty, to allow the US military to use Kadena to attack PLA without prior authorization of the Japanese gov. Such that Japan can face China with an innocent look: The US started it! The US guy they hired can't believe that is possible. So he suggested the change in MDT with text covering "West Pacific". Then he wrote about the experience in an article which was online.
Okay so if some faction in Japan's government wanted to do this, what is the motive?
You're saying that 90% of Japanese hate China, if so, there should be no recruitment problems or morale issues or any need for strategic deception to say "US did it". Because if Japan is so ready and raring to fight China, why would they pursue this arrangement to blame US for using Kadena? They should just attack China with every Japanese airbase and ship at once, it would have a higher chance of doing something than just letting US take off with a few planes like a thief in the night from Kadena.
That was from the highest level of the Japanese gov. They are apparently preparing for war in all fronts.
Well what you wrote only illustrates more the whiffling and waffling Japan had continously had regarding whether to support American territorial aggression.
It doesn't sound like preparing for war. It sounds like preparing for passing the blame to US and giving Japan an out.
Let's say the secret agreement works, USAF units head to support the US invasion. China's first move won't be to bomb hospitals in Tokyo or some other outrageous act. They'll shoot down the planes from Kadena and raze Kadena airfield itself to the ground first.
Then what? Japan government will mobilise whole Japanese society for revenge over the lives of 3000 loud mouthed foreigners? Is that truly the best way to mobilise Japan?
Or will Japan (which as you remember, it's a secret agreement) simply say "we had no idea Americans would betray us by attacking you from our territory! We're now telling the Americans to leave for this
blatant betrayal of trust, so don't attack us!".
The survey said 90% of Japanese people hate China. You tell me why
It's a survey made by white house bots.