By your logic, America is a continent, not the U.S.A.only muricans call RSA South Africa. So no, South Africa is not a country, its a region of the African continent.
The america part is not wrong, but I think Austraila and New Zealand, along with islands, make Oceania, not just AustraliaAlso yeah, South Africa is oddly a country despite also being a region of a continent, the same way America and Australia is a country I guess.