Absolutely, emojis shouldn't have a race, gender or sexual orientation. They should be round and yellow. When they're yellow genderless blobs, they're universal, they transcend categorization. They're abstract representations of an emotion. This racially diverse politically correct human emoji movement is just ridiculous and can be more racist than not. [1]

EDIT: What's more, if you go this route and truly want to embrace diversity you get to take a mandatory lesson in combinatorics. Consider the "couple" emoji. A couple should be any combination of two human emojis of any race and gender with repetition allowed (to allow same sex and/or same race couples). A family of three or four has even more combinations (consider interracial couple with adopted children). What about unconventional families, single parents, anyone? Why is there no emoji for an extended family? No wonder the family emojis are still nuclear and yellow.