caucasian does mean white.. we're not in the 18th century anymore, you know?
Where I come from, when people hear the word "caucasian" the think you are coming from some mountain region between the Black Sea and the Caspian Sea, and are most likely an Eastern Orthodox Christian, Oriental Orthodox Christian, or Sunni Muslim.
Alternatively, they think you are a stupid American cop talking on TV
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Why have race specific ones at all? They just look... odd. Emoticons should just be yellow or cat is fine I guess.
They are not race specific. They are "Girl", "Boy", "Man", "Woman" etc. without any race specified. Whoever designed the pictures could have drawn anything that can be identified as a girl, boy, man or woman. That's why I suggested having different fonts because fonts display the same symbol in different ways. Like g and g, which is the same letter looking very different.