Character analysis: Jim from 28 Days Later as a Christ figure

In the movie 28 Days Later by Danny Boyle, the audience is presented with the story of four human survivors trapped in a hellish situation seeking salvation, and their struggles to reach it.  With a narrative so focused on finding and reaching salvation to their current "hell-on-earth" like situation, it is only natural that the main character, Jim, serve thematically as a Christ figure.  The story starts with Jim waking up from a coma; thematically having him waking up from his death-like state and coming back to life.  He then wanders the town, and the various signs and posters left behind reveal that most of the people have vanished from the face of the earth in a mass Exodus; drawing parallels to the Rapture, and establishing that what remains is Hell-on-Earth.  Jim then wanders among the survivors of this metaphorical rapture, gathering a group of followers, or apostles, and leading them towards salvation.  Along the way, one of the people in the group turn into one of the infected, betraying the band of survivors, and eventually dying, drawing comparisons to Judas of the 13 Apostles.  After the betrayal, the characters are brought to what they believe to be salvation, but this is revealed to be a trap to attract female survivors so that the soldiers can have sex with them and "repopulate", set by a man who is the very antithesis of the main character, our Christ figure.  Thematically, this creates a sort of false salvation promised by a "Antichrist," a trap set to lure survivors into rape and lust.  Finally, the film ends with the main character taking a bullet to the chest so that they can escape to true salvation, again thematically Martyring himself.  Indeed, the original ending for the film had Jim dying at the end while Selena and Hannah live, further solidifying the Christ-like nature of Jim.