Yes, this is emotionally abusive, but I'd guess your mom thinks she's doing a good thing by your daughter. Instead of putting a negative spin on it, how about making a mental "update" sound attractive and positive? Kids do well with this approach, too, which is the whole purpose of:
EMOTION COACHING!!! …(crowds cheer in the background)…
A great place to start investigating some of the most recent work by behavioral psychologists is to read up on it yourself, and pass on the gems that you learn through talk AND example. Here's a good link and some great books:
The book Raising an Emotionally Intelligent Child by John Gottman, which discusses studies showing how much more resilient and happy children raised by these methods turn out – how effective they become at problem-solving, how much better their relationships are all the way into adulthood. Or google Emotion Coaching, for lots of useful information. (Here's one good link to get you started: http://www.education.com/reference/article/important-pare... .)
How to Talk So Kids Will Listen, and Listen So Kids Will Talk, by Faber and Mazlish. The practical wisdom in this book will make it a resource you reach for again and again. It's my current favorite with my 4.5yo grandson. The techniques and ideas are mutually respectful, and they WORK!