I know. But damn it, it was BORN here, and that, to me, makes it AMERICAN!
By born, I mean originally designed and manufactured. That the Canucks could build it cheaper is a reflection on union (goonion) practices sadly tolerated by GM for far too long.
The fact that it was built in Canada has more to do with auto trade agreements hammered out in the 1960s and long standing factories owned by the US auto makers than cheaper labor in Canada. The UAW exists just as strongly in Canada as the US if not more so. IIRC the agreements stipulated that production levels would be roughly equal to the number of sales the auto makers made in Canada. To some extent it's the luck of the draw which models get built where.