No evidence given. Sputnik mentions a priest, who "heard" this prophecy from Pope John Paul II in early 90s. On the Holy See's website there is a statement which reflects the opinion of Pope John Paul II on migrants:"Today the phenomenon of illegal migrants has assumed considerable proportions (...).The present economic and social imbalance, which to a large extent encourages the migratory flow, should not be seen as something inevitable, but as a challenge to the human race's sense of responsibility (...). It is necessary to guard against the rise of new forms of racism or xenophobic behaviour". https://w2.vatican.va/content/john-paul-ii/en/messages/migration/documents/hf_jp-ii_mes_25071995_undocumented_migrants.html