I don't particularly see this logic with Vietnamese, Chinese, South Koreans, Japan. At least in the particular context of military action. In fact, most of the articles I end up reading about Japanese, South Korean, or Chinese responses to what North Korea is doing at the current time.
That said, I think there is a big role of racism to play when North Korea is used as a fear tactic during political cycles locally. But maybe everything is just about America and I'm wrong here.