"And if it works for you, fine. I can't argue with that. What I can argue with is passing it on to others as if it were truth. Someone did that to you, which is why you believe. And millions of people are trapped in belief systems that do NOT work very well for them."

There's an assumption here which is pretty questionable. Pretty well every Catholic I know, including priests, have lapsed for a period before returning to practising. They don't believe because they were programmed into it as children and have never questioned it. From the childhood experience they bring an awareness of the Church, and this can become relevant in later life, should they so choose, on the basis of later life.

In some ways there's an analogy with what happens to children of parents immersed in folk music. They get taken to festivals and so forth, and hear the music around the house. Typically they grow up and react against it. Then often enough they get back into it. Because it works.