Thanks for that, Muttley; it is very enlightening. There is no intrinsic reason that '"non-sorry" adherents' should be offended; they don't necessarily deny that injustices and horrors took place, but rather that an apology is the appropriate response, for various reasons ...

I once met an Australian who told me that his wife's grandfather had told him of having participated in one those massacres you allude to - in that instance, the entire population of a village had been driven over a cliff into the sea, following the (alleged?) rape of a white woman by two Aboriginal men. The guy who told me about this said that he simply could not reconcile his impression of the kindly, decent grandfather he knew with the story of what he had participated in in his youth ...