Most Canadians are moderates, that value politics that are more central, and tend to be fiscally conservative but socially progressive. Of course, this is generalized and tends to flip flop between being more center-left and center-right, but it feels like the more extreme left-wing or right-wing views have only started popping up in more recent years. Canadians have long prided themselves on not having "American style" politics.
That said, most Canadians I know don't for a second think we would be given any voting rights, and that the "51st State" talk is just to sound good to Americans. Most Canadians assume that if we were annexed, we'd be given no more rights than a territory. Aka the Puerto Rico treatment.
I'd like to add that Canadians do NOT generally admire the right wing social slant of the US. The lack of universal health care and the gun culture is a hard no for most Canadians.
Notes:
We grumble about the efficiency of our health care system, but we don't have people going bankrupt because they have cancer, etc. We want people to go to the doctor if they need to, without worrying that they can't afford to go.
Regarding guns, we don't disagree that some people have valid reasons to have weapons (e.g. farmers/ranchers) but we believe in gun control and the vast majority of Canadians don't own weapons. Unfortunately illegal weapons from the US get into the hands of criminals here. (Hey, maybe we should blame the US and charge tariffs to hold them accountable!! Nah, they're friends and we should work together on that issue. j/k)
And, I would say, while the US is a 'melting pot' regarding immigrants, Canada celebrates the different cultures. Is this perfect? No. But Canada is generally more respectful of various ethnicities and religions. (Don't get me wrong, there is still racism here.)
So, our cultures don't mesh. And to have your so-called friend say that Canadians would want to join the US and would do better....again, a hard no from Canadians.
There is a MASSIVE dislike of Trump here in Canada. On both the left and the right. We do have some "Maple MAGAs" but they are a tiny minority.
ETA: typos.
