Oh yeah, worthy of mention that the Sardaukar and the imperial house are jewish. Herbert even got shit for having the jews be the only religion that never changed even after 10k years.
jewishreviewofbooks.com/articles/1633/jews-of-dune/#:~:text=Herbert's%20portrait%20of%20the%20Jews,insular%2C%20xenophobic%2C%20and%20fanatical.