You are the one who made the positive assertion, bro. The burden of proof is with you. Anyway, it shows that you have not tried hard enough to understand what this phrase mean. Yet, you arrived to the conclusion you have given. How would I know that you have given enough time to reconsider the position of the Christians regarding the Bible. You claim to be a Catholic; yet, you don't believe on the Bible as it is believed by Catholics (I even doubt if you really know how Catholics view the Bible). That is a sad thing. You claim to be a Catholic while not being one...
One CAN be a Christian without knowing the Gospel, the importance of a church, or about Jesus Christ........ Gandhi surely didn't know about the true Gospel.... but many of his principles were in line with Christian principles. There are those who CAN by the innate gift of discernment uphold God's law in their hearts. (Rom. 2: 10 - 12)
Although Galatians 5: 4, and Romans 11: 6 speaks against people who wish to remain with spiritual agnosia with regards to any doctrinal of faith they might believe in and simply rely on their nature of being "basically good."