Which straw broke the camel's back. Was it insulting the prime minister as a governor, threatening to annex the territory, threatening to "redraw borders", or calling Canadians "nasty people"?

I think if we could point to a specific pivotal moment, it was when tariffs were first announced and Trudeau came on TV and discussed the difficult times ahead, the relationship as we knew it being over, and the announcement of counter tariffs and other plans. Then the Premiers announced things like removing American alcohol from shelves (Jack Daniel’s said this week that Canadian sales fell 62%), and shutting down various historical courtesies. For me at least that’s the moment it went from confusion, anger, and frustration to coordinated effort to take a defensive stance against the new aggressor nation.

The petty child-like name calling from the American president was mostly just an evocation of “I’m embarrassed for you.”