“Many of the mythological epics in Western literature like Tolkien’s “Lord of the Rings” and even “Star Wars” are based on Zoroastrian myths of epic battles between good and evil forces that must test the resolve of the young hero through many trials.”
Bull! Tolkien was a Roman Catholic who was an expert in language. His son became a priest. He was greatly influenced by World War I and among the Inklings, he attempted to convert CS Lewis.
All of that is true, but stories involving cycles of epic battles pre-date Christianity.
One thing you’ve forgotten was Tolkien was a Professor of Anglo-Saxon and is directly responsible for “popularizing” the idea that Beowulf is the beginning of English Literature. It was about the only thing I enjoyed reading in my high school English literature class. Tolkien’s works have much in common with Germanic\Scandinavian myths, like the Ring Cycles (See Wagner), and even Grimm’s Fairy Tales.
Howya, Frank. Tolkien said himself that he took some of his narrative themes from the Kalevala, a 19th century epic poem based on Finnish mythology and folklore. Although Finnish is a Uralic language, rather than Indo-European, that doesn’t preclude the possibility that the traditional tales of Finland were influenced by Persian or other Indo-European traditions.
On the other hand, it could just be that human beings in all places and subdivisions tend to come up with the same general types of stories.