Yes it is insulting.
When non-Catholics hear, “no salvation outside the Church,” they are automatically seeing that the Catholic Church is telling them that they will not go to heaven, but hell, because they do not belong to the institutional Catholic Church.
Granted, the exact teaching of the Church doesn’t say this, but they’re not going to get beyond hearing that one statement and most will not look further.
It’s a flaw in the wording as presented in general, not the teaching of the Church.
Jim
I think perhaps a qualifier like “Can be insulting” or “in my opinion is insulting” or “would be insulting to me”, is in order.
As a convert, and one seeking a faith with a sincere desire for the Truth and ultimate achievement of heaven, your idea would have failed to convert me. And Catholics in general are HORRIBLE at converting in the modern era. while others knock on doors, we shy away from even public conversations. While many reach out with words of sincerity and knowledge, we say 4 letters (RCIA) and hope they can wait a year to find out what they need to know to convert. How many are lost to the idea that someone has the path to heaven? Baptists, Lutherans, Evangelicals, Mormons, etc. These people are converting at a high rate because they confidently hold that they have the right path to heaven. As Catholics we need to believe this about our Church as well. While God MAY choose to save outside the secular Church, the only way to salvation that has ever been revealed to mankind is through the Church. Through baptism (offensive and insulting to some I am sure) God gave us the sacraments to help us achieve heaven, to rid ourselves of sin and fill ourselves with grace. From confession to Holy Orders, to last rights I have no idea how I personally could attain heaven without the Church. Furthermore, while nothing is impossible for God and we do not know His mind, we do know what he has revealed to us. To go beyond that is unwise. God has chosen to reveal a select few who are indeed in heaven. We have proof of this. We pray with them and follow their examples. There are no non Catholic saints. God has never revealed a non Catholic in heaven. Every single person we KNOW to be saved and in heaven was done so through the Catholic Church. Period. Even the Old Testament Saints. The Church has always held this and always should.
As someone who was a convert and has sponsored many converts as well as actively evangelizes for the faith, I can tell you that sincere seekers, sincere people are STARVING for the Truth and for the food that ONLY the Catholic Church provides. And they are dying to be saved. They are dying to be told which way to go, even if it is the narrow path. We do nothing to help them by telling them that the path that is hard but is the true path is not the only path and that they can or should take the other paths and see where they lead. God has only revealed THIS path to be the correct one. If your really want to save people and grow a Church, and populate heaven, you will confidently lead them down the path the shepherd wants his sheep to be on.
That is called leadership, that is called spreading the Gospel, that is called mission, that is called the Truth.
Watering that down, saying it is insulting is bowing to the same thinking of telling a kid to not have sex while slipping a condom in his pocket.