U.S. embassy instigates hate-Korea wave among Japanese?

Update
A commenter kindly told me that she was not a fervernt supporter of DPJ. She was just thought by many to be a supporter of DPJ. She herself thinks she supports social democratic party.

そんなワケで、未だに、あたしのことを「民主党の関係者」だとか言ってる大バカもいるみたいだけど、これほど何度も何度も何度も何度も「あたしはオムライス党を支持してる」って書き続けて来て、みずほたんとのメールの内容まで公開してるってのに、どこをどうしたら、あたしが「民主党の関係者」ってことになるんだろう？link

And the comment reads,

She supports Socialist Party.
This makes you look like a real fool.

Thank you (^_-) I have corrected it. How do I look now? (^_-)

[The original post]

The one of the most popular Japanese blogger,Kikko's blog reports that U.S. embassy instigates the hate-Korea wave among Japanese by rewriting the article about Korean history;IP identified as U.S. embassy deleted the title "Korean history" and wrote that Korea has no history it has been a client state of China or Japan or barbarian states.

Supposing that U.S embassy wrote that, I don't understand the logic why it means U.S. embassy is instigating the hate-Korea consciousness among Japanese.
BTW. Kikko is a fervent supporter of DPJ.