I really hate answering this and I feel uncomfortable answering it, though I'm not sure how to explain my opinion. A lot of it has to do with sexist and it's the age range of 16-21. Yet, that age range of males can influence older, immature men who have no authority over themselves. Agree or disagree, but males are flaky and considered drama queens more so than females. I know plenty of women who outplay males in whatever the role may be - this includes feral dps. Any raid I've been in with a female, they're focused and you have a bunch of twits talking in Ventrilo about gear upgrades or something that doesn't make any sense (if with a pug group).
Male or female, female or male it doesn't matter who comes first or who comes last, everyone is entitled to prove themselves. Anyone can be a drama queen, it depends how emotional one can get it. OP: I honestly wouldn't let it get to you. Keep looking for a guild and you'll find one. That guild needs to remove the whole "no female" requirement, because it's complete bullshit in my book. They should honestly delete this thread because that's all it's doing is bringing out epeen emos (not direct toward you, OP).