this is an interesting interpretation. i always imagined the jihad as being a violent struggle.

the other jihad in the first novel is that of the Fremen, which is described as being unspeakable violent, so I find it hard to imagine these to be different in that regard.

It's an interpretation if you ignore the impacts of feudalism, slavery, and religious war on Dune. The idea that people were able to express freedom of speech during a time described as the enslavement of 99.99% of the human race seems off-kilter.