How exactly was he "vocal about his lifestyle"? A scout, any scout, who brags about how many "chicks he smashed" last week isn't Morally Straight either. This isn't a gay/straight issue, it's a decorum issue.
The scout needed to be realize, and it's Leader's responsibility to educate, that there are times and places for everything. Scouting is about scouting.
Pale Horse. You just don't get it. For your information this scout was attempting to discuss in detail HIS "dudes he smashed" as you so colorfully have put it. I am not sure where you participate in scouting at but I have never heard or witnessed any scouts speaking or heard any other scouts saying they have heard or discussed their activity. So no you are wrong when you say it isn't a gay or straight issue. In this case, it was a gay issue. This is my son we are talking about and when my son says he is not comfortable around this type of behavior, I will remove my son from that situation. It has nothing to do with not being accepting or tolerant. This is in the best interest of my son and family. Thank you!