For a fascinating look at fascism, check out the early Russell Crowe-vehicle Romper Stomper; for an honest look at faith, look to Robert Duvall's The Apostle; for this picture's debate handled with searing intelligence and humour, see Roth's Operation: Shylock.
In the roadway analogy, this kind of screenwriting reminds me more of that scene in The Apostle where Robert Duvall secures the accelerator to the floor, jumps from his car, and watches it charge straight into a lake.