Nobody ever said that salvation if for those except for Catholics.
Any Catholic can be saved if he puts his trust in Christ alone instead of the church. It happened that way for lots of us. We were Catholics, became saved, and left the Catholic church.
Indeed. I actually know some Catholics who are saved. They are quite miserable because of the false doctrine heaped on them by Rome, but for some reason they won’t go to a church where they are nurtured with Biblical truth.