Remember, the top dogs in BSA are 'professionals' but the guys on the ground running Boy Scouting are volunteers. It's very easy to lose all your volunteers ~ just bring in a bunch of gays and that's the end of it.
Yeah, it really doesn't matter if it is gay leaders or gay scouts, the end effect will be the same - a compromised organization that no morally straight person will want to be a part of.
The BSA will be opening themselves up to numerous lawsuits involving gay scouts. Not to mention false allegations.
Do they really want to go down that road?