Usually rulers of a country, not mater what their designation: King, dictator, or President; seem to like to keep a bogeyman in the shadows to scare the the citizens without political power. This keeps the focus off of what the rulers and their entourage are doing, making their political actions inconsequential to the masses. The masses will the focus on the scary one/issue ( I do believe the US (and other mistaken US expats) are the designated scary one for Duterte, so we will just have to learn to live with it until the heat in the kitchen gets to hot... then it may be time to leave.) The more rants the more important it is to look on what is happening behind the rants. Political genius, no, I think more like political magicians, masters of deception, with the hand faster than the eye. This strategy works in most countries, particular if the media helps in the magic entertainment program of deception.