Hi Ivor. No, I didn't realize that you were distinguishing between the country name and the name for the people, so I just picked one to make my sentences simpler. However, my point is the same about the country word: Canadians mean the US when we say "America". We never use just "America" to include Canada (only "North America", or less commonly "the Americas"). We don't feel offended when an American uses "America" to mean only the US; on the contrary, many of us would feel offended to hear Canada lumped in as "America".

I haven't interviewed every single Canadian on this matter, but I've lived here long enough and lived/travelled in enough regions to have a good sense of the common usage.

Maybe you're right about Brazilians - I have no idea.

Cheers, Marion