I don't really understand why that comment was killed. It seemed reasonably worded to me, and the poster didn't write "you can't be neither sex" he wrote "With rare exception, a person comes into the world as a male or female," which is quite different.

I think it's a shame that on HN people can't voice opinions like the one in that comment. To me the comment didn't seem bigoted, but seemed worthy of discussion.

Edit: the comment is no longer dead, at least at the time of writing this.