It's funny that you place Donald Trump in the same camp as Europe's absolutist monarchs. While in hospital recently, I finished reading a book on the shenanigans of the Roman Catholic church in the medieval era. The author argued that the church, which throughout much of the period was corrupt and prone to internecine squabbling, had less power and prestige than we often imagine to have been the case and the Popes were unable to easily muster forces for the Crusades. It was a more politically complex era than many understand to have been the case. I suspect that these days the Pope, whom I suspect has no interest in a modern version of the Crusades, has greater moral credibility than did his medieval counterparts and that Trump much less power than his counterparts.