The debate is over Gay Scouts, not Scout Leaders.
Hmmm, where have I heard that before? Oh, yeah: "The debate is over privacy, not abortion." Or was it: "The debate is over criminalization of sodomy, not gay sex and marriage"?
Face it, the short-term argument might be framed as about gay scout members, but once changed, it will become about scout leaders. And, having given up the moral high-ground in the first fight, you will have no ability to defend against the second...