Well, the reason should be obvious, but since the answers that this thread has got so far don't seem to be answering very much i'll try to help.
I have visited both China and Japan. I've been to Beijing for 12 days, and i've been to Kyoto and Tokyo for 10 days. I have many Japanese acquintances and my best friend is currently studying the Chinese language for 1 year in Beijing.
BUT lets start by examining the reasons that the Chinese and Koreans would give for hating the Japanese...
- The Japanese have never apologised.
True or False?
Objectively false.
- The Japanese Prime ministers still visit the Yasukuni temple in which class A war criminals were enshrined.
Yasukuni is a temple in which less than 20 class A war criminals were enshrined. Yasukuni pays respect to all the people or animals (!) that gave their lives for Japan. That's why in Yasukuni there are MILLIONS enshrined. So... 14 out of ~2,500,000 !!!!! All the fuss is about 14 enshrined people, this makes the temple goers worshipers of war criminals etc according to the Chinese and Koreans. It's simply absurd. It makes no sense.
- The Japanese have never given compensations nor apologized to the comfort women.
True or False? False, the Japanese have given compensations on 2 seperate occasions. The second time it was accompanied with a personal apology from the prime minister!
What's the damn problem then? The problem is with the definition of what's a comfort women, and exactly what happened. Should the Japanese accept the definition that the Koreans want? The answer is: Not necesairily. The Japanese shouldn't accept everything that the hurt from them 70+ years ago say. I think that the world can live with 2 different slightly conflicting views on this issue.
At this point it should be noted that the Japanese gave the Chinese trillions (yes, you read correctly trillions) of yen in Official Development Assistance throughout the years after WW2. This is
VERY important, if it wasn't for this China would be 5-10 years behind the point that it is now.
The problem is that most people can't possibly comprehent that the wrongdoings of the Japanese in ww2 aka 70+ years ago are used today as a form of ultra-nationalist anti-Japanese propaganda by the Koreans and Chinese.
How does this work, you may ask. I don't know exactly how it works in Korea (i haven't been there yet) but i do know how it works in China!
In China (i have read) that there's a total of ~120 tv channels. Anyway, my hotel had ~60 tv channels, because my best friend lived ~30 minutes away from my hotel and i travelled to Beijing alone i watched A LOT of Chinese tv. What did those ~60 tv channel show?
Almost all day long...
~26 channels show old China tv-series or movies.
~15 channels show tv-games, tv-shows, stuff like so you think you can dance etc.
~4 channels show the news. One in English.
~4 channels show relatively modern tv-series or movies.
~6 channels show the actions of the Japanese devils during ww2, as tv-series or movies!!!
Now imagine if you're European or American if all day long you were bombarded with movies and tv-series showing what the Germans did in ww2. How likely is it that you'll end up liking the Germans?
Now add to that that in the supreme majority of Chinese movies the bad guys are the Japanese, that in school the largest history chapter is on the "Japanese devils" actions in ww2, and that the media constantly downplay the positive aspects of Japan of the last ~70 years.
In China there are
amusement parks where people go to kill "Japanese devils" (here's a link because it can be unbelievable that such a place exists), in shops around Beijing i saw souvenirs of Chinese soldiers beating up Japanese soldiers and Chinese soldiers taking the diaoyu/senkaku islands, there are signs in restaurants that Japanese are not allowed, in temple fairs i saw toy hammers that read "diaoyu's are Chinese" etc etc
~6 months ago there were anti-Japanese riots in which Japanese people were attacked,
Japanese businesses and factories were burned to the ground, people who drove Japanese cars were often attacked, there was a
Japanese book ban in Beijing for a little while, the Japanese were
(almost) banned from the Beijing marathon, Children were taught how to attack Japanese cars and
how to defend the diaoyu islands! etc etc
It's likely that i would hate Japan too if there was sooooooooooo much propaganda (yes, this is propaganda) against it in my country.
The reality though is that...
- Japan has changed and become a democratic country.
- Japan hasn't shot a single shot since ww2. This is especially interesting, because Japan was the second economy in the world (now is the third) for quite some time, and the Americans pressured Japan to abandon the peace constitution and take a more active role in Nato affairs. So, Japan could have a strong military and be quite different than it is today. Japan may be forced by the Chinese now to have a stronger military, we'll have to wait and see.
- Japan has probably the most anti-war culture in the whole world. I'll even mention a few of the better anti-war movies: The human condition 1,2,3, The emperor's naked army marches on, Fires on the Plain, Nikudan etc etc. People who watch anime may also have noticed anti-war themes, for example: Naruto, Gundam zero, Grave of the fireflies etc etc.
BUT lets look at China and Korea, what have they done since ww2?
Isn't it true that China occupies Tibet? How does China treat the Uyghurs minority? How about the 9-dash line? The constant rise in military expenditures?
What about the Koreans? They're surely saints arent they? Oh wait... best not forget the attrocities of vietnam!!!
Talk about hypocricy huh? Who should be ashamed? Should the Japanese be ashamed about all of this?
For those of you ready to answer me about me not understanding how bad the Japanese have been, about dokdo/diaoyu which they have stolen from "you" etc. My grandfather died by the hands of the Germans but simply because we don't have anti-German propaganda over here i don't hate the Germans of today for it NOR should the Koreans and Chinese hate the Japanese for what their grandparents (of the Japanese) did to their grandparents (of the Chinese & Koreans). Despite what you're told most countries in this world have done something bad to other countries. If those other countries held a grudge for 70+ years we would all be doomed!!