Canada

Yeah, pretty sure the stats support this take -- QC has been pretty uniform / pointed in their response.

My guess is that it's partly tied to the realization that "if" that annexation stuff happened, and Canada eventually 'lost', there's no way QC culture / french language stuff would have the same sort of power/clout as part of the USA. Especially with the current government trends, which aren't exactly welcoming of other cultures.

Likely similar sentiments amongst many FN, in that a USA annexed Canada would absolutely give the finger to any and all treaty type things. Canada's approach to integration may not have been great, but the USA was much more inclined to extermination and is absolutely not as supportive as Canada is on that front. Like the Mohawk weren't really a "Canadian" band with large traditional territories in Canada -- they're basically from New York, and were displaced by America killing em off, and Canada (or the brits, as Canada wasn't really much of a thing back then) welcomed them as refugees / gave them some space. Tyendinaga, for example, was founded around 1780, it's not exactly their ancestral homeland. They're one of the biggest groups at this point, even though they started off in Canada as refugees. If groups like Idle No More started blocking 'public' roads/rail to impede projects in an annexed Canada, they'd absolutely get sent to alligator Auschwitz for re-education, and the band involved would get labelled as a terrorist group.