You can relate this discussion more to the current state of the show business, general musical education and, since we talk about genre, to the culturally predominant approaches to music and creativity by males and females, rather than to the "str8-acting" thing: notice that being "vocal" about supporting gay people, firstly mean supporting the showy show-business parade-loving side of it, that is, "the scene", and it became a fashion as the show business itself grow outrageously showy and ostentatious itself, particularly under the influence of entertainers who are more or less vocally talented or more or less mediocre, and who make up for it and offer a plus that other mediocre artists had never thought of exploiting before.
Even if you are actually very talented and skillful, as the public have been increasingly becoming more tone-deaf, from opera houses to the last joint on the planet, it became NECESSARY to rely more heavily on the visual or, in general, non-acoustic side of the show.
If, as a musician, you focus on lyrics and music itself, you give way to both equally musically talented women and women who simply "put on a show". If women are more "practical", more "socially-oriented" and less "idealist", then for one Jeff Buckley you have a dozen Rihannas, Perries, Chers, Gagas, JLos, Madonnas, Britneys and JustinE Biebers
People like Beyoncé or Julie Andrews may be more or less openly supporting and more or less "iconized" by the gay establishment, and they will remain what they essentially and supposedly are: grrrreat artists. In any case, the gay icon thing, even if you try to "make it happen" like Mado or Gag do, is something that essentially comes from the mass of fans, down-up, not up-down.
Well, maybe I should have put more time in writing and editing that but...
