Canada

This sounds really sus.

I have met a large number of Canadians who have left the country, and they were not super well off. But no where near 1 in 10

They were mostly people who became citizens, then returned to the place they were born for one reason or another.

Sometimes it's realizing that the grass isn't greener, sometimes it someone "back home" gets sick, sometimes it a relationship they have in Canada goes away for one reason or another.

You'd be surprised how many people working in tech have moved to the US. And I can assume other professionals as well. You get MUCH better pay and cheaper cost of living than in Canada.

The rest of the article seems to be talking about Canadians living abroad. So only a few tens of thousands have to leave annually to get to that total amount. I think that first sentence is just poorly written.

Thinking of the number folks I know who went to the US for retirement, work, or to get married, it seems possible.

Yeah, the only people I know who have permanently left Canada had some tax-related issues they didn't want to deal with, so moved to Central America. The only other Canadians I know who moved to Europe were people who came from Europe, had their kids here, then went back.

There's a ton of other reasons why the US is a bad baseline.

A) They let in far fewer immigrants per capita in the first place

B) The US collects incoming taxes on foreign income for it's citizens, even if you lived outside the US while you earned it.

C) In some cases it's harder for US citizens to work or live abroad. For example working holiday visas are only available to Americans in a handful of countries, where Canada has agreements with more than a dozen countries.

And let's not forget their famous ignorance of world geography, and their inability to find the USA on an unlabelled map. "Who wants to do a road trip to Europe?" "Which country is Africa again?"