I wonder if he’s getting this confused with Distributism? On which many papers were written, by sincere Catholics both hopeful and critical, but not by any popes, of course.
Church consistently against all Marxist ideologies, socialism, communism, etc, they are inherently contrary to the right of property, which is consistent with Christian doctrine since the beginning, well, before actually, it’s right in the 10 Commandments: “thou shalt not steal” implies a person’s right to ownership (not to greed or course).
Pope John Paul was so outspoken about socialism’s dangers it was the only moment of anger noted in his 26-year pontificate.
“No one can be at the same time a sincere Catholic and a true Socialist.”
Pius XI, Quad. Anno (1931)
As quoted on the Masthead every week by the Catholic weekly THE WANDERER.