Why Did Paul Atreides Start the Jihad?

Paul Atreides didn't start the jihad because he wanted a holy war. He saw it coming for years, searched for a way to stop it, and decided it couldn't be stopped, not even by his own death. Once he took the throne, he let it run, because every future his prescience showed him without it was worse. (Dune; Dune Messiah)

The vision Paul couldn't escape#

The jihad begins as something Paul sees, not something he plans. After the Harkonnens take Arrakis and his father dies, Paul and his mother flee into the desert. That night, in a stilltent, the spice opens his prescience, and one future keeps coming back: fanatic legions carrying the green and black Atreides banner across the stars, killing in his name. (Dune)

He is horrified by it. Through the rest of Dune Paul keeps looking for a path through time that avoids the jihad, the way someone might look for a pass through mountains. (Dune)

Why the Fremen were ready to follow#

The war needed believers, and the Fremen were primed. Long before Paul arrived, the Bene Gesserit had planted legends on Arrakis through their Missionaria Protectiva, so that one of their own could survive there if needed. Among them was the prophecy of the Lisan al-Gaib, a messiah from off-world. (Dune)

Paul and Jessica use those legends to stay alive among the Fremen. Then Paul becomes the leader the legend describes. He trains the Fremen to fight, rides the sandworm, survives the Water of Life, and leads them to victory over the Emperor's Sardaukar. Each step makes him more of a god to them. (Dune)

Why he let it happen#

By the end of Dune, Paul has his answer, and it is a grim one. There is no path that avoids the jihad. Even if he died, his followers would fight on in the name of a martyr, and the war would still come, just without him to limit it. (Dune)

So when he beats Shaddam IV and takes the throne, he lets the Fremen go. The book ends before the fighting starts, but Paul has already seen what is coming. (Dune)

Dune Messiah shows the result. Twelve years into his reign the jihad is still being fought. Paul could end it, in the sense of giving the order, but every path he can see that stops the war leads somewhere worse. He gives his priest Korba the cost at a conservative estimate: sixty-one billion people killed, ninety planets sterilised, five hundred others completely demoralised, the followers of forty religions wiped out. (Dune Messiah)

Dune: Part Two's version#

Villeneuve's film keeps Paul's dread and sharpens the turn. Paul avoids going south for most of the film, because his visions show the holy war starting there. When he finally goes and drinks the Water of Life, he stands before the southern Fremen and claims the prophecy for himself. (Dune: Part Two)

At the end, the Great Houses in orbit refuse to accept him as Emperor. Paul sends the Fremen against them, and the war begins on screen, watched by a Chani who refuses to bow. The Dune: Part Two ending explained covers the changes from the book. (Dune: Part Two)

So whose fault was it?#

Herbert leaves that open on purpose. Paul didn't invent the legend, and he didn't want the war. But he chose to ride the legend to power, and he chose the throne knowing what would follow. (Dune; Dune Messiah)

Our reading is that the question is the point. Herbert wrote Messiah partly as a warning about charismatic leaders, and Paul is his example: a decent man who sees the horror clearly and still can't get off the path, because too many people need him to be a god. The argument over how much blame he carries is on is Paul Atreides evil? (Dune Messiah)