Exactly. I don't buy that 'huge amounts of prejudice towards US means that we can't be sexist towards THEM' argument. Of course they can. Sexism means judging someone on the basis of their gender, just like racism means judging someone on the basis of their race. Women may have earned the right to sling back some barbs of their own, but that doesn't mean it isn't sexism, or that there aren't double standards at work here. (You never see a 'men's bookstore', do you?)