So...one idiot decides to spew a bunch of crap and that justifies nuking to death thousands of innocent men, women and children. How are you any different than the Japanese people who committed their disgusting crimes?
Well, if China and Japan were to take this issue up in an international court of law, it would most likely side with Japan.
You're more than welcome to google up these two academic articles
Helfin, William B. “Diaoyu/Senkaku Islands Dispute: Japan and China Oceans Apart.”...
Sadly if you follow China's logic of it's history and how it owns everything, then I suppose it's fair for Rome to start claiming most of Europe as being under it's control too...after all most of Europe was part of the Roman Empire back in the day...