[Cyclops08]

John 14:6

Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.

Seems clear enough.
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Bingo! So right. Well, What did we learn from this papal announcement? We learned the Pope can be dead wrong.

That blows papal infallibility right out the window, doesn’t it?

[piusv]

This wouldn't be an example of papal infallibility. Papal infallibility pertains to times when any Pope proclaims by a definitive act a doctrine pertaining to faith or morals. It does not mean that everything a Pope says will be infallible.

Regardless, most of what is being called "wrong" here is simply a misunderstanding of what he is saying. IMHO, I do think that his comment about children of God is wrong (although I do hope I am also just misunderstanding him).

[Campion]

That blows papal infallibility right out the window, doesn’t it?

Nor even close! There are four qualifications that must be met for a Papal teaching to be considered infallible. This meets, at best, only one of the four.