THE BOOK OF ELI ADDRESSES SEVERAL ISSUES FOR TODAY!
Gary Oldmans' character represents the wolves in sheep's clothing that use the Bible for power, greed, and selfish ambition.
The earth was scorched by the sun and the survivors burned all the Bibles.
Why? They viewed the "natural catastrophe" as an act of God and in defiance and rebellion, burned His Word.
Eli was a chosen vessel of God that laid down his life, finished his course, was transformed, and received white robes in the end.
Also in the original book the author did not include any other religions on the book shelf, the Bible stood alone.
I imagine that Sodom and Gomorrah looked a little scorched after Gods' judgement of fire and brimstone!