I am not an American, but I have one specific positive point to say about that: generally the only way to get a country to acknowledge the horror it did is to invade it and trial the leaders (Germany WWII: trial, Iraq against kurds: trial, France Vichy: nothing substantial, France colonial wars: amnesty, USSR: nothing, Yugoslavia: trial, without real invasion). In this instance, nobody is in court (if we ignore Poland), but at least there is some admission.