Well, everybody born in the american continent is technically “american” too, including Central and South America. Is there a specific term in english for these people?
Edit: Thanks for all your answers, especially the wholesome ones and those patient enough to explain it thoroughly. Since we (South Americans) and you (North Americans) use different models/conventions of continent boundaries, it makes sense for you to go by “Americans”, while it doesn’t for us.
There is no continent or other country-containing region known as “America”. The proper term for the area you are describing is “The Americas”, referring to North, South, and Central America, collectively.
“From America” can only correctly describe a person originating in the United States of America. A Canadian or Mexican person would be described as “From North America” or “From the Americas”.
Sweet, it even works over the internet!