Definitely not. The world of Harry Potter, both in the original works and in much of the fanfiction, is rich with emotional content. There are fanfictions that explore the characters' inner turmoil, their joys, and their sorrows in great detail. To simply say that all Harry Potter fanfiction is emotionless is a hasty and inaccurate generalization.
I don't think it's a fair statement at all. 'Harry Potter' was written by J.K. Rowling with a great deal of planning and purpose. The story has themes that resonate with a wide audience, and it has a proper narrative arc. Fanfiction, especially the 'loopy' kind, may not have the same level of refinement. 'Harry Potter' is a legitimate and highly regarded work of literature, not some haphazard fan - made thing.
One popular theme is the continuation of the relationship between Eliza and Higgins. Writers often explore what happens after the end of the original story. Another theme is the backstory of the characters. For example, how Eliza grew up in poverty before meeting Higgins. Also, there are fanfictions that focus on the cultural and social differences that are so prominent in the story, but from different perspectives.
Well, 'My Fair Lady' is basically about Eliza Doolittle, who starts as a poor and uneducated girl. Professor Higgins takes it upon himself to teach her proper speech and etiquette, and along the way, there are lots of ups and downs and interesting developments in her character and relationships.
My Fair Lady is about a poor flower girl, Eliza Doolittle, who undergoes a transformation in speech and manners with the help of Professor Henry Higgins. It's a charming tale of class, language, and personal growth.