Perhaps the phrase "Is the Pope Catholic?" might just be a legitimate question rather than a snarky response to someone who asks a question with an obvious answer?
If Pope Francis truly believes this, then he has abandoned a very basic and fundamental truth not just for the Catholic Church but for orthodox (small "o" here) Christianity in general!
The historic position is
Extra Ecclesiam nulla salus or "Outside the Church, there is no salvation!" Since the Roman Catholic Church asserts that they are the "One True Church" that Jesus is speaking of in Mt 16:18 and that
God's grace is channeled to the faithful through the sacraments of the Church, it has been said in the past that there is no salvation outside of the Roman Catholic Church which thereby condemns all Protestants and anyone else not in communion with the Church or Rome as heretics! They significantly softened this language with the
Second Vatican Council and now refer to people like me as "separated brethren" and I guess they have been making the broad way even more so ever since!
If you are a Christian who believes the Bible, you understand that Jesus is not just "A Way" but THE WAY and the ONLY WAY to the Father (Jn 14:6) and Catholic Apologists do assert this for the most part and I do agree that there is, in fact no salvation outside of the Church. We just have to properly define what we mean by "The Church!"
We can go down many different paths from here but I guess this would be a question I would ask Pope Francis if I ever got to meet him: "Hey Frankie buddy, are you sure you are a Catholic?" I am certain that most Catholic "traditionalists" (who vehemently dislike Baptists such as myself) would be asking the same question or have come to the conclusion that he is an imposter who does not speak for them! I'm sure Frankie is a nice guy and just wants everyone to "like him" but this statement makes him far removed from the historic Christian faith and the Roman Catholic Church.