Originally Posted by
TiHabanero
We can accurately say that Canada is part of the Americas as we were taught in grade school. This denotes there is more than one country that makes up the American continent. America is often used in reference to the USA and is specifically incorrect.
Of course, there are citizens from many countries in the Americas and those citizens are continental Americans.
However, when speaking of demonyms used to describe a nation's citizens and the nation they are from:
Citizens of Federative Republic of Brazil are called
Brazilians, and their nation is referred to as Brazil.
Citizens of the United Mexican Statesare called
Mexicans, and their nation is referred to as Mexico.
Citizens of the United States of America are called
Americans, and their nation is referred to as America.
As unfair as that may sound, that's the way it is.