You're not wrong, and I tried to communicate this in my caveats. But considered as a whole, Southern Canada at least doesn't seem all that different from the U.S imo (though there's a U.S. immigrant in this thread who mentioned a little bit of culture shock, interested to read their take if they feel like expanding on that). And I say this as someone who has visited a lot of it (though not everywhere - cheap shots at Saskatoon aside I really would like to go explore Saskatchewan one day).

Most of us get our groceries from large, pretty evil corporations. Most of us want to own single family homes that few can afford anymore. We generally watch the same TV shows, listen to the same music, and have many of the same pop cultural reference points (Quebec, as in most other aspects, being a huge exception. Honestly find their media industry fascinating.). There's a generation of Canadians that knows waaay more about U.S. history than Canadian history. etc.

Then again, I suppose this is the bird's eye view - zoom in and you'll see lots of regional differences (still recall disparaging remarks about 'Upper Canada' when chatting with old timers in NS the last time I went).