The dogma of Papal Infallibility doesn’t say that Popes are infallible, or that they are sinless, or decent, or principled, or honest.
There have been dozens of bad Popes. This fact has absolutely nothing to do with Papal Infallibility.
The reason Protestant attacks on Catholicism are laughed at by informed Catholics is that the attacks are against things the Catholic Church does not teach.
It would be a good idea to pause in your attacks on the dogma of Papal Infallibility, and FIND OUT WHAT IT SAYS.
https://en.m.wikipedia.org/wiki/Papal_infallibility
Biblically, there can be no pope.
That is why the world laughs at catholics.
Yeshua roundly excoriated his disciples for seeking a position of elevation. He said that all believers are equal, with no exceptions.
Only when the Pontiff Speaks from his Chair; “Ex Cathedra”; on matters of Faith and Morals he is speaking infallibly.
But don’t expect the Bible Thumpers, mesmerized by a word in Leviticus, a chapter in Deuteronomy, or a verse in Lamentations to grasp this.
They share a common attribute w/all hard left militants, namely their ignorance and intolerance.
History is mute testament to that reality; be it Rousseau, St.Just, Marx, Trotsky; among hundreds of these fanatics.