Yeah the Dune metaphor works pretty well for Trump for a few reasons. Trump and the GOP have manipulated white supremacy and adjacent forces in America to suit their ends. Trump has been touted as a prophet and messiah among the Evangelicals and neo-Nazis who want him to go way more mask-off fascist and racist than he was in the beginning, and he keeps feeding into it to keep their support.

Paul is seen as a messiah among the Fremen and he uses that position to meet his own desire for revenge. However, between the first and second books, the Fremen go beyond what he needed them for and basically genocide an entire galaxy in their religious zeal.