I don't suppose it is possible that only a minority of women might enjoy this job? I mean, after all, it would be regressive, backward thinking to imagine that a majority of women would absolutely hate the idea of programming, and that there are many more women enjoying successful careers in IT, but often in less lonely and more tactile roles such as analysts, project managers, change management, sales, etc. 
I've been in It for 25 years. I am not a programmer (I too could not hack it - pardon the pun), but one thing I do know about programming is that it is an absolute meritocracy - almost more than any other job. If you are good, you'll do well, regardless of sex, creed, colour, religion, or anything else. If your current employer doesn't agree, there are plenty more that do. I have met some great female programmers and enjoyed working with them, but there are fewer of them because fewer women want to be programmers. It really is as simple as that I'm afraid.