Edit: rate limited by HN, so here is my reply to the question below:
Racist - seriously? So "momma" is not a word that is ever used? Is it a word from the AAVE - so why would it be mocking the AAVE?
I'm not a native speaker of English. But honestly, I don't care about that level of political correctness. I doubt that using "momma" is as big of a deal as you make it sound.
Edit 2: no being black doesn't imply speaking differently, but the scenario here was poor oppressed black girls obsessing over white dolls, with mothers who don't care to buy them black dolls. Also, just because I used "momma" doesn't imply all blacks only ever say "momma". What weird twisted logic is that? In the same vein, if I had used "mother", I wouldn't have denied black identity by claiming no black people ever say "momma". If you are offended by little things like that, then sure, your life will be difficult. Lighten up! (no pun intended - I mean the mood, not your skin color).
I am actually a bit offended by you being offended, by the way! Why do you think so badly of me, without even knowing me (interpreting my words in the worst way)? It seems you have a lot of bias against me.