When you read article, it is important to note the before state and after state. There a lot of things that happen in between.
First, you need to understand that this culture existed well before colonization, and it existed in peace. Secondly, the culture's history and knowledge, specifically on how to survive in such a harsh environment, was oral as the Inuit did not pass things on by reading and writing. This is a key point.
It's not that it's impossible to survive in the Arctic, it's that that are many requirements, and these requirements were passed on generation after generation. Much like an Astronaut has to pass tests to ensure that they can survive the remoteness of space, the same can be said here.
What happened next is that the people, who were the 'books' of knowledge were taken away, put in schools, killed, imprisoned, etc. The requirements to be able to live in this environment were no longer being met because the people responsible for the oral transmission of the requirements and knowledge, were no longer capable of doing so. The fragile ecosystem of the Inuit and the remote environment was disrupted.
I don't think people are getting the idea that their oral traditions were essentially what we would call religion. When religion was put forth a long, long time ago, it was there to shepard our civilization by providing requirements so that people can survive, and to enable them to deal with trauma, for example death, anger, etc.
If you were to rip out religion from a population thousands of years ago, burn all their books, and make them forget it, they probably would descent into chaos. This what happened here. The Inuit had their oral traditions, i.e. akin to religion in this example, removed, and the memory or books, disappeared as the information was in the people, and not in a book.
The alcoholism, violence, etc. are symptoms of our current society applied onto theirs. This problem will span generations, and the situation will only improve once they are able to get back their oral traditions, their religion, their way of structuring their life in order to survive in the remote location. Of course, this is more complicated than that because we've now injected our modern way of life into the mix. I don't know what the outcome will be, but I do think once they are able to find their oral traditions, and to remember the stories from the old, they will be better than they are now.
Just my 2 cents.