I receive a lot of parcels via Canada Post. Probably more than via any other carrier. Canada Post is almost always the cheapest shipping available and often by significant margin. Cost of shipping will increase if it's privatized. That means higher costs for many small businesses who now reach all of Canada. That means fewer sales, less money in local communities, more reliance on Amazon and Walmart, and more money leaving our communities, making us poorer. A cheap, national carrier is an economic enabler infrastructure for Canadians. I haven't looked at analyses but I'm guessing it would be a net contributor in terms of welfare. Similar to high-speed rail.