There were no Nazis in Imperial Japan. Even during the worse and most brutal parts of Imperial Japanese occupation, there was no such activity that was like the Nazi Germans. Confusing the two things together offends the existential threat the Jews were put under. Hitler blamed Germany's problems on the Jews and thus he and the Nazi party led Germany to government policy for the complete eradication of the entire Jewish race. Imperial Japan had no such official program. The Imperial Japanese massacre many Chinese, many Filipinos, etc., but the massacres were not part of an ideological dogma advocating for the extermination of those races. That is the difference between massacre and genocide. People often get the two words mixed up but the reality is that the Imperial Japanese did not conduct genocide. Genocide is a characteristic of the Nazis. There were no Nazi's in Imperial Japan. Imperial Japan was an imperial country much like the other imperial countries such as France and Great Britain. The parts of China that came under Japanese occupation during WW2 never went through genocide. Massacres, yes, but there was no genocide. Get off your high horse and stop getting the two mixed up.
By the way, of the numerous people that helped the Jews escaped their impending doom from Nazi Germany, one was Japanese.
https://en.wikipedia.org/wiki/Chiune_Sugihara
With that out of the way, the Chinese posters should remember that the PRC had a period of their own self-inflicted barbaric period of time.. the cultural revolution from 1966 to 1976.
Indonesia has problems, no one will argue with that. But the wide sweeping allegations against Indonesia is over doing it. Just as China has changed a lot since the 1960s and 1970s, Indonesia just might very well change as much as well. But if China decides to withdraw investments from Indonesia, such as that high speed rail planned to go from Jakarta to Bandung, then Japanese would gladly fill in where the Chinese leave.
The idea of China sending military forces into Indonesia to protect Chinese investments is outright unforgivable by all other neighboring countries and Japan the US. That is invasion, doesn't matter what excuse.