I guess its your myopia that prevents you from seeing the greater picture. To better comprehend your questions, you have to look back hundreds, if not thousands of years in East Asian history.
This Japanese hatred that is the cornerstone of many East Asian and South-East Asian countries doesnt date back 60 years (Post-WWII), it dates back hundreds of more years.
For hundreds of years, this small island, being Japan has tried to take over Asia many times in history because it yearns greater stature.
Take for example the Asian Seven Year War AKA The Japanese Invasion of Korea in 1592 (There was also the Seven Year War between France and England).
It was thanks to the military intervention of Ming Dynasty China that Japan lost the war.
Under the Chinese Tributary System, Chinese Vassal States were afforded protection, and you have to understand that alot of Chinese blood was shed in the defence of Korea at that time.
What your doing here is whitewashing history with a bias. While its true that the Chinese are propping up the North Korean regime and have fought the South Korean regime in the 1950s, it doesnt compare to what the Japanese did.
The Chinese play an indirect role in Korea, never have they invaded Korea (unless you count the Korean War in the 1950s), however they never occupy and plundered Korea the way the Japanese has.
During the Seven Year War, Japan plundered Korea of its resources and its skilled individuals resulting in an technology transfer (oddly enough, its always been their MO through history).
Never have they experimented on Koreans as the Japanese have nor have they ever rape the women.
What the Chinese have done is simply enable a regime.
Imperial Japan’s social structure made it entirely unfit for running an empire.
The Japanese because industrialized while their society was still that of a Feudal Caste System. So when they took over Korea, they had none of the institutions necessary to effectively govern and ASSIMILATE a subjugated people. The standard Japanese solution was either enslavement or extermination. So of course the most outrageous episodes of genocide, mass rape, biological experiments were perpetrated on the Koreans and others.
The Chinese fought at least 2 Wars
I certainly understand the history of what Japan has done in Korea.
For present purposes though - your view is false. Yes, Japan invade Korea 500 years ago (or even 100+ years ago). No one should forget that. But what is happening TODAY? I don’t live in 1500’s - I live in 2010.
How many Koreans died in the last 10 years from man-made starvation? Execution? Forced Labor? How many will die TODAY in the North? And who is responsible for that? Who could end that situation immediately if they wanted? CHINA.