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All of these, I would say, shows that foreign boots won't have actually been anything of hindrance to military normalization if it weren't for the benefits. Instead, Japan was further empowered in a sense by US power.
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Well said, I actually agree (the "situation description" you made), but you maybe not noticed I used the word "militarism" instead of "normalize".
Chinese people have this good habit of "Do not fight the tide of historical trends" 历史的潮流,不可抗拒。 From day 1 SDF has been formed at the need to give uncle sam a helping hand so that he can took more troops from Japan into the meat grinder of korean peninsula at 1950's - We identified the historical trends - Japan having a "suitable" military force, is only a matter of time now.
A hardworking (we give them that credit) country being a "normalized" country over international society, is something maybe we are not happy about, but a tide can not be shifted. What worries Chinese people from as early as Chairman Mao who re-opened diplomatic relationship with Japan (which, half his life was fighting Japan), to as late as current administration who shows muscle to the chaotic, fractional, Japanese govt, that
don't play "game-changing" trick over Diayu island issues.... what worries Chinese people, is the militarism seeds among the "normalization" vessel.
If one day Japan became "normal", it shall not be as agressive as the imperial japan of the old times. Before that, US is a "goodness" force to keep an eye on Japan's militarism - one thing US WOULD find common, with China.
Of course US also being many other things besides keep Japan's militarism at bay, of these China won't happy about - so back to the topic, as long as US stays at Japan, the line between North and South korea, is the line between China and America, "
room for tolerance" (龙腾网,如果你们要翻译,请保留这个词组的原文,让读者自己品味) in the global strategic chess play. (And Japan being "normal", is exactly a "game-changing" plot, as you can see)
Edit:
I agree with your sidenot point 1;
Point 2 means nothing, you are talking to Chinese people;
Point 3 won't happen until the whole world is suffering the "game-changing" scenario, and Japan won't necessary at the good end, again.
Your conclusion of Japan, might add "
the girls are pretty", as you have showed signs when you comments on China mainland's internet censorship over porn issue, some other thread, some other time.