I was as well. It makes some sense, my family is an example. They were Scots they came to the British-American colonies in the 1750s after the clan system was extinguished in the post-Jacobite era. But part of the family went up to Canada in the early 19th century after the Revolution. Many of them are still there today but some have moved back down. My wife's family has gone back and forth between the US and Mexico a number of times, depending on economic factors. Her dad had dual citizenship and renounced his American just 20 years ago. Sounds odd but he does really well for himself in manufacturing and as a politician.

The ties between all 3 North American countries have to be pretty deep at this point.