I have nothing to add to my earlier posts on this topic.
Of course you don’t have anything to add. You can’t find anything that actually shows we’re wrong about traditional Catholic teaching on Catholics attending and participating in non-Catholic services. The only exceptions are solemn occasions such as funerals and weddings.
Pre-Vatican II Catholics just didn’t do it. Especially Popes. Period.
New pope, Jorge Mario Bergoglio of Argentina, has Jewish connections
Now keep in mind, annalex; whether the rabbi's above statement is true or not, plans are still on for the Pope and Skorka to visit the Holy Land together.
How much "evangelizing" do you expect the Pope to do?