First of all, I don't see how opening up the passage for commercial use could deal with the high cost of living.
The very first concern of Inuit living in that region is to make sure the passage is environmentally protected, because Lancaster Sound is recognized by the international community as a very important ecosystem. UNESCO has been pushing for that sound to be recognized as a heritage site for 20 or 25 years now. Our first priority is to make sure the wildlife and the environment are protected before any agreement is made about a commercial passage.