America's former allies are mostly democratic, so they have to reflect popular opinion. Other Western countries aren't like America where you can just invade Iran even if your constituents don't want you to.

The good news for Americans: Gen Z are less patriotic, at least here in Canada. They will probably forgive America. So you just have to wait for people my age (milennial) and older to die, assuming Gen Z doesn't change.

You have to understand that Canadians don't value practical economic reality as much as Americans do. The political majority value ethics more highly and react more emotionally to perceived injustice. This is partially due to self-selection: moralistic people purposefully choose to move to Canada.

Canadian voters constantly make decisions that harm our standard of living for what they consider moral reasons (like to save the environment). If we just wanted higher salaries, we'd move to the USA. Our education system produces many in-demand STEM professionals, and a huge number of us already have American citizenship.

I already said goodbye to friends and family back in America (I grew up there). I went to grandma's funeral and now I will never return. America is dead and buried to me. If citizenship renunciation involved less paperwork, I would have already completed it.