Actually, the % of bi guys in the lifestyle is pretty high and getting higher all the time, so I wouldn't say they are in the wrong place. I can recall when it was a nonstarter, and almost zero guys within the lifestyle would openly admit to being bi, I've watched the pendulum swing almost completely in the last 20 years, to the point where those who are completely against it are the minority. Even those guys who aren't into it and not remotely interested are mostly accepting of the idea that others are and they can deal with the discussion of it or even the idea of it happening in front of them (so long as it's not too them).
This is a forum section for bisexuality, it is not limited to female bisexuality. If a topic offends you it may be best to avoid it.