Why should Canada Post be a corporation at all? It is legally managed to serve all Canadians. Corporations otherwise are not legally required to serve this or that place or demographic. Yet Canada Post must deliver to as far as Grise Fiord. It cannot be profitable while legally obligated to service extremely unprofitable regions. It can either serve all Canadians as a service, or be a real corporation that can make decisions like target demographics and operations, but not both.

(To be clear, I think everyone deserves mail service, including the people of Grise Fiord, so it should be a service and not a corp.)