Case of Mixed English: Racism: Correction

What is race?
Quite simply, it's the classification of a species.
So, why is it, that when people talk about the tone of other people's skin, they call that race?

Long spread misnomers, I blame religion mostly on this crap.
Racism would apply to other species, not skin tone/nationality.

So, you might be asking what would be correct in its' place.
Simple; the term is 'ethnicism'.