I'd almost echo everything Professor Coates has said. In fact, before he said “win-win” I had already written it down. It's a cliché, but there is a “win-win” in your first question. Proper implementation of land claims would be better for the Inuit and all Canadians.
Right now there's a lawsuit in Nunavut versus the Canadian government, as you know. We need to settle that and take a look at it. The answer is absolutely yes, that if land claims are properly implemented and further developed, it can only work well for all Canadians.
You asked whether further strengthening of self-determination for Inuit or other indigenous peoples assists Canadian sovereignty. Absolutely. A lot of Canadian sovereignty claims are based on land use and occupancy by Inuit, so it's logical that self-determination for Inuit—who are not advocating a declaration of independence—is a declaration of working together. That means the rights have to be respected.