Now boys... Kiss and make up. Differant strokes for differant folks. If a GB isn't your thing, don't come. If it is, join in. The gay thing just isn't relevant, any more than to say that all members of the YMCA are gay because they shower with other guys.
Regardless, you would think that in this "enlightened" community called Terb, that even if a guy was bi, then so be it. Having participated in many "events" that involved multiple guys (2 - 6) I have never seen any guy "move" on another guy.
Again, GBs ain't for everybody. If you don't want to participate then don't. But don't try to force you puritan convictions on the guys who want to try something a little different!