Conversation so far:
What were the listeners views on Bobbie Gentry's Ode to Billie Joe song?
Bobbie Gentry said that listeners named flowers, an engagement ring, a draft card, a bottle of LSD pills, and an aborted baby being impetus for Billie Joe's suicide.
What were some other views on Bobbie Gentry's Ode to Billie Joe besides what listeners told Bobbie Gentry?
Fifty years ...we're no wiser as to why Billie Joe did what he did and in the context of the song and Gentry's intentions, that's just as it should be“
What were Bobbie Gentry's views on the Ode to Billie Joe story?
When Herman Raucher met Bobbie Gentry in preparation for writing a novel and screenplay based on the song, she said that she had no idea why Billie Joe killed himself
What are some other interesting aspects of Bobbie Gentry's views on Ode to Billie Joe besides how she had no idea why Billie Joe killed himself?
Bobbie Gentry said, Those questions are of secondary importance in my mind. The story of Billie Joe has two more interesting underlying themes.“

Question: What were these themes?
Self-contained rewrite: What were these more interesting underlying themes on Bobbie Gentry's Ode to Billie Joe?