Do they have mixed race couples, same sex couple etc?
If people want to change the colour fair enough, I personally don't mind the Yellow character as its not about representing me, it's about conveying emotion through text which is difficult and often misread, I don't see how the colour of the emoticon changes that.
I didn't see it as racist that everyone was Yellow either, it's more racist to highlight differences, we're all different in many ways, why do we highlight skin colour, seems strange. How will we ever get past it if we keep highlighting differences.
All I want are emoticon that can convey emotion as that's often the biggest problems when texting for me. I'm often looking for an emoticon to convey some meaning and it's not there... Like, where is the DOH emoji?