Aaron Sorkin responded to his critics on comedy writer Ken Levine's blog:
[B]elieve me, I get it. It's not hard to understand how bright women could be appalled by what they saw in the movie but you have to understand that that was the very specific world I was writing about. Women are both prizes and equals.
More generally, I was writing about a very angry and deeply misogynistic group of people. These aren't the cuddly nerds we made movies about in the '80s. They're very angry that the cheerleader still wants to go out with the quarterback instead of the men (boys) who are running the universe right now. The women they surround themselves with aren't women who challenge them (and frankly, no woman who could challenge them would be interested in being anywhere near them).
The whole thing is worth a read, including Levine's introduction, from which I took the headline to this post.