I'd like to hear the author explain bi-sexuality.
Homosexuals refuse to accept people who have sex with both sexes. Does not fit their PC world. They also refuse to adress the issue of temporary sexual conduct in prisons.
From a theoretical standpoint, there seems to be a reasonably strong basis for such a thing in women, but not in men. Men show far more bias toward one extreme or the other than women, by a number of different metrics. Women can straddle the fence with relative ease, but men aren't wired that way.
Purely anecdotally, I know a number of women that play for both teams occasionally but know of no men that do even though I do know a couple gay men, which seems to support the research to some extent. I know guys that have switched teams, but none that have played for both at the same time to any real extent.