The interpretation of what (why) happened, is the "truth" I mean about a "human artificial construct", and this view is shared by many historians as well. At the present post 2000 year era, as you had already post with your videos and links, it just seems a plain and full lie. But everything is according the glass and the eye of the beholder. After a genocidal and cultural assimilation... a devastated country after WWII, trying to resume their own identity and culture just as many nations had done it before... you are no body to judge. Even today, the Republic of Korea wouldn't be the same without Japan (past and present) influence.