Hi. Well, I am guessing that she isn't the only one that attaches friendship, comfort and love for her stuffed animals. It's fairly common to give a life like persona to inanimate objects that comfort us. The blankie, the teddie, etc. I visited a college age nephew of mine and walked into one of his roommates rooms and he had two teddies tucked into his bed. This is a 19 year old, good looking, personable, well adjusted engineering student at a major university!
I would not worry about the stuffed animals.
But, what is going on with the 'not good' parenting? Why do you say that? And why do you feel she is emotionally undeveloped and what other developmental issues does she have? Some more details about that would be really helpful to discuss this more! We'll try to help!