How about comments like "Women getting their panties in a bunch about something as minor as that is the reason they aren't taken seriously in the workplace (to the extent they aren't, I mean)"? Not even so much the message as the way it was said.
That's like one guy on this whole thread. Everyone else would be more than happy to see you in an interview.
We all would. We're just not seeing you gals come in. We've got quite a few female project managers and business devs at my company, but no programmers.
(The other answers to the first question are better and I agree with them.)
It is possible (I don't actually know in your case) that there are other factors that make women not want to apply to your company. For example, right now (and in the US) women are more likely than men (for this argument it doesn't matter whether it is cultural or innate) to seek companies that reward people (or at least don't punish people) for wanting a balanced between work and home. A company's career website (or benefits website) can turn off potential applicants if it looks like that balance is not respected. That is particularly true in software because there are software companies that do both.
As noted above, the lack of men in nursing is something that the nursing community worries about.
What I do think anyone who wants to see more women programmers can do is this: if you hear that women (or a woman) is discouraged from X for reason Y do not dismiss their concern. First, reason Y is probably a symptom not the main reason. Second, dismissal is in itself a discouragement, as it implies that their opinion is not worth anything. It would better to reflect on what the main reason might be (or what assumption are you making that may be false).
