I don't know about "quickly", but in my area it has been a gradual decline until it is now accepted by most of our own members that we are a "service organization", fostered in part by Grand Lodge. Publicity= members. It amazes me that some think because of this, men will be suddenly inspired to join.
IMO the blue Lodge should take care of worthy brothers, their widows and orphans and leave charity to those organizations which are more qualified to do them and do them well; ie Shrine, Scottish Rite, Kiwanis, Rotary, etc.
I have a difficult time subduing my passions on this particular subject. If I offended...
sorry bout that.