The current economic system (a market-oriented economy in the context of democratic government), the Pope says, is “unjust at its root.”
This is contradicted by Rerum Novarum and Centisiums Annos. It seems to me that if one Pope can declare the economic system endorsed by prior Popes as “unjust at its root,” and not merely as flawed, then there can be no claim of Papal infallibility.
During the past two hundred years, the Catholics have swayed back and forth between Monarchy and Fascism, and between these two and Liberalism. And now we have a Pope who declares Liberalism as “unjust at its root,” without offering an alternative.
Jesus said, “My Kingdom is not of this world.” Religious leaders who pretend to speak for Jesus in matters of politics and economics reveal only that they do not understand how revolutionary is the Gospel message.
Neither Rerum Novarum, nor Centisimus Annos, nor any of Pope Francis' teachings, are protected by Papal infallibility. It's debatable whether something which strayed far from moral principles into the specifics of their practical applications even *could* be protected by Papal infallibility.