The movie doesn't deliberately express what's wrong with Jenny. Some plots are just symbols in the movie, as long as you know that she has a terminal illness. Jenny represented a considerable number of American youth at that time, and her childhood description showed similar abuse by her father, which also reflected that among the various factors of the world outlook journey of American youth represented by Jenny, the family came from the family, and when he returned to his family and life, he would naturally blame and dislike the original home that had cast a shadow or hint on his childhood. Forrest Gump certainly has no prototype. There are many things that can be said in the whole movie. For example, you can regard the world (including the history of the United States at that time) as a coordinate, which helps you understand the film. Want to know the metaphor in the movie, it really can't be explained clearly in two sentences. You'd better know more about American history and culture.
The above content is not plagiarized, it is entirely a personal opinion. I hope to be praised, thank you.