I haven’t seen ferngully so I can’t comment on that, but at it’s basic level the plot of Avatar is so generic and bland you can take any story where a character representing the viewers culture interacts with some native, a more natural setting inhabiting people, and find multiple similarities
I saw both. Avatar is a marvel of VFX, but the story is definitely ferngully.
I haven’t seen ferngully so I can’t comment on that, but at it’s basic level the plot of Avatar is so generic and bland you can take any story where a character representing the viewers culture interacts with some native, a more natural setting inhabiting people, and find multiple similarities