Question

why does granholm continuously return to the metaphor of rosa parks as a warrior in ''ering Rosa Parks?''

Answer 1

To give her speech structure and help the audience follow along-Apex

Answer 2

She is used as a metaphor for a warrior because of her actions and how she fought for equality. Without her there would probably be no civil war movement, or at least not at that time. She was a warrior for social equality and for civil rights and was an inspiration to many.