This rhetorical question is used to make a point. It can be translated as a statement. Alternate translation: "A wicked ruler who makes unjust laws is not your friend" (See: [[rc://en/ta/man/translate/figs-rquestion]])
Here the metonym "throne" refers to a king or ruler. Alternate translation: "a wicked ruler" or "corrupt judge" (See: [[rc://en/ta/man/translate/figs-metonymy]])