IIRC, at least one of the popes he puts in Hell was someone he disagreed with politically. Most of the popes he puts in Purgatory (quite different that from the vulgar image) or in Heaven, enjoying the Beatific Vision. There is no evidence that he hated — or even questioned — the Papacy as an office, only that he thought some of those who held it were — to put it mildly — unworthy.
Was that you that mentioned the Canterbury Tales the other day? I also enjoyed John Donne and Pepys