It's hard out here for a pope. See, when it comes to religious history, the list of Catholic Church transgressions makes for pretty uncomfortable reading. Despite exalting virtue and kindness in its teaching, church leadership has spearheaded a long history of outright unforgivable Catholic actions.
You might remember some of these improprieties from school - the Inquisition, Joan of Arc, and the trial of Galileo should all ring a bell. But not everything here is medieval. Though Vatican violence goes way back, a number of disturbing episodes are from recent history. Some of this repugnant behavior comes from popes, some was church-endorsed, and some, most unsettlingly, was just straight-up regular church practice.
Dark church history contains scandal after scandal rife with every vice and taboo you can imagine. When the church was at the height of its power (at which point it was the most powerful organization in the Western world), it's safe to say everything went to its head. Combine that with church leaders seeming to stubbornly resist adapting to changing morality and you've got a whole lot of unforgivable moments on your hands.
Pope Pius XII Denying Eyewitness Reports Of Mass Execution During The Holocaust
Systemically Covering Up Tens Of Thousands Of Cases Involving Sexual Misconduct
Pretty Much Everything Done By Pope Boniface VIII