"belief-centered"

Sorry, that's more drivel. This source seems to be an inexhaustible supply.    Too bad it can't substitute for fossil fuels.

RUS is a book with lots of good songs of many types.   As I have said more than once, it is compact, not so expensive, and purports even to have tunes.   It has caught on with many because of this.

That's enough to make "instant community in a box" easy for people who can't get together very often and would like to sing together.   Many don't want to have to actually learn songs. The religious background of the editors is totally immaterial. And no data has been put forward to challenge this obvious fact. Just as religious belief or background of same in the people who choose to sing from the book has nothing to do with it.

If anything, the worship which comes into play is, as I noted, the American worship of efficiency.

No matter how many times our illustrious atheists want to beat the dead horse it's just not showing any signs of life.

Not that we ever expect them to admit they are way off base on this.

Now perhaps our UK atheists can tell us how religion is the cause of red-light running in the US.   Still waiting for this.   It promises to be at least as entertaining as the RUS-refusal to learn songs link.