That's the POPE to you sir.....I am sorry but I am very harsh on this issue, I would not attend, and I would give reason. I have absolutely no sympathy for hoplophobes whether related, friends, or the pope. The only way to get their reluctant acceptance is standing firm, don't waste time debating the issue it is a waste of energy. I just had this discussion with a fellow I met who asked me about people who might be uncomfortable with my carry, I told him in no uncertain terms it is their problem, not mine.
Now I only speak for myself, to me basic human rights are that important.