@nzrock I have heard that Koreans hate Chinese but I don't know why is it because China does bad things is from some past dispute? All I know is that Koreans and Chinese hate the Japanese because of WW2.
@AbCdE321 yes the short of it is that it all starts from past issues(mainly war), from hundreds of years ago, and modern disputes such as WW2, re-flame those hatred.
These days what makes each sides hate each other is broken down to so many different levels(personal, political etc.).
