[Izkata]

> since the name "America" clash with how they name the continent (America)

There are two continents, "North America" and "South America". To refer to the whole, you pluralize it as "the Americas".

[mkl]

The number of continents and their names vary between cultures and languages. In Latin America, the Americas are considered a single continent called America: https://en.wikipedia.org/wiki/Continent#Number

[graemep]

I assume someone from one of those cultures would not call it America.

Major places (and IMO it is a mark of the importance of a place) have different names in different languages. London does, Germany does, Japan does,....