Starvation only accounts for a part of the death toll, the rest can be credited to the brutal "class struggles" throughout the Cultural Revolution. Mao's henchmen probably didn't kill for fun, but they sure killed great many people for whatever perverse ideological reasons. Incredibly, no one in China today is permited to speak of the massive human toll resulted from either the starvation or Mao's brutality, except in the most perfunctory and oblique way. PRC is yet to disclose the real figure.
Bottom line: until PRC regime and average Chinese start to do some serious soul searching, don't be surprised that many in the West find their ceaseless anti-Japan whining hypocritical, and remain unmoved.
Is there any rational explanation to that little piece of historical insanity?? Were ALL our U.S.State Dept people communist?