[Fyron]

It has nothing to do with mores; it is the very definition of repression (2 a : a mental process by which distressing thoughts, memories, or impulses that may give rise to anxiety are excluded from consciousness and left to operate in the unconscious b : an item so excluded). Nazi memorabilia is distressing, and they seek to repress the memories of WWII atrocities by erasing the presence of its historical artifacts. German social mores may generally find that particular repression acceptable, but it doesn't change the fact that it is repression. But this is getting way off topic from the point of this thread...