My thoughts are, that since music is art, lyrics can be open to interpretation; moreover, the intention and context of "You'll Never Walk Alone" in "Carousel" is to give comfort, hope and resilience, within a story of love and loss at a time when it was common for a large proportion of the population to be religious, especially in the times of War - "With hope in your heart you'll never walk alone". Whatever one's personal belief is, one can therefore align and interpret the lyrics for oneself, as the message is, "You'll Never Walk Alone".
The context of the movie, "Carousel":
It was April, 1945 – less than a month before Nazi Germany’s surrender, in a country yearning for hope. In the dark days of World War II, Rogers and Hammerstein’s "Carousel" premiered on Broadway and with it, the song of survival: “You’ll Never Walk Alone.”
David Fox, "One of things it has going for it, is the lyrics are not utterly specific to that moment. They speak to something larger. It is a piece that can be popped out of the context of the show and continue to maintain its meaning and its integrity even outside of it."
David Fox teaches in the Theater Arts program at the University of Pennsylvania, and specializes in American musical theater.
Excerpt from the movie, "Carousel"
https://www.youtube.com/watch?v=1izigJX1pxIhttp://wrti.org/post/youll-never-walk-a ... -song-hope