Earlier quoted context omitted.
Canada would only have to patrol its southern Alberta border /s No coincidence that Albertans are sparking up the seceding issue again. When 10% of the population produces nearly 20% of the country's GDP it's a breeding ground for contempt. And it also seems like Albertans are the butt of a lot of jokes from the other Canadians anyway. I'm sure this US government would love to see an "independent" Alberta.
You're rounding both ways to exaggerate your point. 2024 numbers, Stats Canada (via Wikipedia) has Alberta at 11.9% population, and 15.25% GDP. They (and Sask too) do swing on the higher end in GDP per capita, but it's not a 2:1 by any stretch.
Which isn't that far off from BC's 13.80%:
* https://en.wikipedia.org/wiki/List_of_Canadian_provinces_and...