The problem is it's not a private equity firm incorporated Canada. Like most things, a lot of the private owners of Canadian businesses, are American. We do the the work, they make the profits. We want to tax them? They'll just shut down all their Canadian "investments." Until we get it through our thick skulls we don't need a rich American to own us and can run a company just fine without them, carefully leveraging crown corps as a public investment vehicle until a company can stand on its own legs and be privatized is a useful way to disentangle us from our current status as a resource colony for other countries.