I believe you have made excellent points and that there is merit in all of them particularly Joe's women's movement commentary.

But I believe that the answer lies more in their chosen lifestyles and culture. (Not their sexual preference but their social behavior and fashions.)

In my admittedly limited experiences with gays of both sexes I have found males to be more glitzy than straight males and the females to be more earthy than straight women.

This is a generalization but I think many of you will find that your experience bears it out. Gay males tend to look and act more like Broadway or pop musicians with neat expensive snappy clothes, while Lesbians lend to be more bohemian in their dress and demeanor. I would think that like most people they would be drawn to musicians with whom they have more in common.