I tend toward the possible use of "Canadiative", myself, for speaking of those from Canada. It gets across the clear notion of "Canada" and "native residents" at the same time, in the same way that "United Stative" gets across the notion that we, here, in the more central reaches of the North American Continent, are both United and are stating something. This is something that I find it important to do, to state something, and having "Stative" as part of my national identity might help.
Mostly I find myself, these days, in a "Stative" confusion, for example. It's good to remember this, when Mike asks me about Mexicans in the middle of a discussion about Canadians. Then I can see Essorant's point.
Exactly what we might be stating evades me at the moment, as it so often does.
But then "Stative" and equally odd "Canadiative" are both neologisms that seem easy to explain and hard to justify. These are yet two more qualities that Essorant's and my suggestions share. Brother nations, marching forward together, hurrah!
More accurate these days might be to call us collectively The Disjunctive States of America; and we might all claim membership, Canadians and us neighbors to the south together, as well as our most southern Norte Americano members in Mexico, Disjunctive and disunited all in cordial disrespect, conjoined by geography.