This article from the Washington Post makes many of the same points I would make if I had the time, with several good links throughout. The crux of it is this:

Never will you find a serious German politician, let alone one contending for the leadership of the country, insisting in 2015 that the Nazi swastika is “part of who we are.” Nor would you be able to stock up on kitsch, “nostalgic” Nazi memorabilia. There are no vainglorious monuments to Nazi leaders lining German city squares; instead, in the heart of the capital, sits a painful testament to collective guilt and the horrors of the past.

The contrast between this and the way some American states still commemorate Confederate leaders, name roads after Confederate generals and fly Confederate flags could not be more stark.