I hear ya, and mean this with all due respect and just as a counterpoint.
I think the world, and especially Canada, aren’t wrong to expect Americans as a whole to not let it get to that point - democratically, seriously. We have been, happily and willingly, consuming an entire culture of freedom and defence against tyranny. Your news is our news, including all of the violence and rationalization of it - defence of freedom.
We know your massive protests and hard won civil rights because your media is our media just like your products are our bilateral lifelines.
If it gets to the point of invasion I think it’s fair to consider all of America having stabbed us in the back.
Edit: just to try and be lighter about it - it’s like we all took in your movies and books and documentaries but America themselves in a staggering ratio seem to have missed the point or identified the wrong protagonist.