> The reality is that Canadians get very good, tax-payer subsidized educations and then immediately go to the US to work for 10+ years and only return later when they need to start drawing on the Canadian social services for things like healthcare and family care.

You write this declaratively as if it describes a typical or representative case. In the 11 years I’ve lived in Canada, this isn’t representative of what I see.

The direction of migration of medical doctors likewise shows signs of reversal. I’m a physician and my wife is a surgeon. We left the U.S. over a decade ago and are constantly receiving inquiries from US physicians about immigration.

> We left the U.S. over a decade ago

I'm assuming you were educated in Canada, and then you worked in the US (but now you don't)?