Is the rise in Chinese Nationalisim push to offset unrest?

The Chinese have been beating the nationalistic drum harder and harder lately it seems.

Celebrating "Victims of Japanese Germ Warfare Experiments" Day:
Victims of Japanese germ warfare remembered via twitter

State News Promoting a new book on the Rape of Nanking: (just a tweet)
https://twitter.com/XHNews/status/276724606885298176

What is lost in this rise in anti-Japanese rhetoric is that China's better half after WWII had to leave for Taiwan (Formosa).  

When will the PRC have a day of remembrance for the 20 to 40 million plus (i have seen as high as 78 million) that died at the hands of their current government during Mao's Cultural Revolutions and purges?

Are they seeking distraction for the people from internal troubles?
Index predicts social unrest in China over income disparity (Donga)

They use the Gini index (coefficient), which has risen significantly the last few years to 0.6, to predict social unrest in teh PRC.

Wiki's list of countries by Gini Index:
http://en.wikipedia.org/wiki/List_of_countries_by_income_equality

This is an incredibly high number if found to be reliable.