I, for one, didn't miss the point. I've followed this thread from beginning to end, and wasn't moved to post anything substantial until I responded to Herman's post.
The sad reality, whether it's beside your point or not, is that your sentiment ("why do they flock to our church choirs") is a common and unfortunate one, in my opinion. We shouldn't care why they flock to our church choirs, we should be happy they're coming in the doors, and thank God for the opportunity to minister love and restoration to their souls. If you don't want them in your church (or your church choir), I'm sure there's someone else who will take them.
That's all I'm saying....