By inviting non-Catholics to Rome, I think Pope Francis is following the spirit of Pius XI, and going one step further, inviting them.
Matthew 4:8-9
Again, the devil took him to a very high mountain and showed him all the kingdoms of the world and their splendor.
“All this I will give you,” he said, “if you will bow down and worship me.”
I am afraid your comment is a non-sequitur.