Japan still cannot do away with the Chinese characters. Whether Koreans regret or not of switching to the alphabets, Chinese characters still are dominating their art. Their traditional costumes, architectures are basically from China. We cannot control on what the ancestors did, but we can determine what our generation can do to be peaceful with our neighbors. Don't try to put the blame on yourself of what your ancestor did.
History written by different people have different views.
Heroes for one are villains for the other.