You're being downvoted, but I don't think you're that wide of the mark. I think what's at issue in the U.S. is the proximity of the genocidal acts (as well as t

You're being downvoted, but I don't think you're that wide of the mark. I think what's at issue in the U.S. is the proximity of the genocidal acts (as well as the ongoing racism) and the social consequences of honestly addressing them. Italians today don't care about the consequences of Carthage because it's so far in the past as to almost seem fictional. But if you take a more proximate example - say, the Armenian genocide in Turkey - you find a similar phenomenon of widespread denial and/or ignorance.