He doesn't have the votes :X Story of his game. But yeah he seems to have thrown in the towel on trying
Also he (Poirot) is attempting to set up a Leon boot next, but I don't think that stands a chance either. In even attempting it, he insures he (along with Penelope) is not in Leon's F3. The three remaining become crystal clear and have the majority, as well as the mutual incentive to vote together. That gets them past not only 5 but likely 4 also barring an immunity.
Lucifer Leon Rust F3 is therefore going to be extremely likely unless somehow all the threat levels recalibrate dramatically soon. Tbh Rust should be voted out at 4 over Poirot, I would think.