remaining or forged?

Did you see the pictures? I don't understand why they need to let their children inherit such hatred against Japan from the children's great grandparents? I partly understand they cannot forgive those who killed their parents and relatives, but I don't think it good to teach them such hostility in public school. I would say the antipathy has not remained but been forged in their minds to create their own nationalism that their great grandparents really wanted to be against Japan and other imperialistic countries 100 years ago. If they want to make their occupation of Liancourt Rocks secure, they only have to leave the case to the World court, as suggested by the Japanese government. I'm afraid now some of the Korean children will offend and assault the innocent great grandchildren of the Japanese who colonized Korea 100 years ago, and that the South Korean government has no intention to be friendly with Japan. I would say they need it as the only available virtual enemy to encourage their people to work and study harder to get the country to be strong enough to assuage their anger and anguish against themselves in the past, who did nothing for their country. I would also say I could share those feelings, though.

You could read this to learn that the US supported South Korea to create the hostility to some degrees after the WWII.