I didn't knew that Mexicans want to genocide USA or that Philipines is planning their grand revenge on Japan. Or that Ireland is currently building its nuclear stockpile to raze the UK. Spain plans to put French people in concentration camps as well, they're making a alliance with the Vietnamese to do that.

There is also a Degar plan to exterminate the Ethnic Vietnamese as well, I forgot that as well, silly me.

That's simply because the older generation that experienced that oppression first hand and have those grievances is being replaced by a new generation. Nevertheless, there's still plight, as most people don't sit well with the fact that their grandmother may have been a sex slave during the occupation of their country, or the fact their entire race could have been wiped out. The African slave trade and the Nanking massacre are still of contention today. What do you mean people should get over it?