Fantastic essay! Yes, Haneke is indeed obsessed about violence, in its various forms, undoubtedly influenced by growing up in Germany/Austria during World War II's aftermath.

I particularly like that he examines what would drive regular people into violence, rather than portray antagonistic characters. However, I don't find all his films particularly engaging, they sometimes do tend to get lost in his own obsessions over creating a cinematic experience. The White Ribbon, however, is pretty much perfect and one of the finest films this century.