North America is a pretty unique case, in most places the locals weren't so completely wiped out (See: Africa, Asia). They also faired slightly better in South America (there are significant numbers of people of indigenous descent alive).
North America sounds pretty similar to Australia to me in that regard.
Something that struck me both times I visited New Zealand was how strong and honestly respected Maori culture was. The Maori identity seemed to be much more positive and proud than the Aboriginal identity is in Australia. I'm not sure if we have an Australian equivalent of the Treaty of Waitangi (http://www.nzhistory.net.nz/politics/treaty/the-treaty-in-br...).
Those are all quite different from North America, in all cases, the indigenous people are still around and are going to be indefinitely. The Native American tribes are tiny, vastly outnumbered, and shrinking over time.
The blog post that so outraged you argued that colonial administration was better than the post-colonial regime, so I'm not sure if you're engaging with that and missing, or just raging.