I'm not being sexist...

Yeah, so, when a bloke says "I'm not being sexist, it's just that most women think / do / want this...", they actually look more a prat than they would if they'd just said the sexist thing. Because by saying "I'm not being sexist" they actually mean:
a) I'm being sexist and I'm too bloody stupid to realise it
b) I'm being sexist, but if I say this then you'll not complain
c) I'm a complete moron, and am trying to persuade you that what I'm saying isn't sexist, it's just 'reality'
d) I think you're an idiot

Why is this the world? And why is this world the one that comes with violence, ignorance, vicious assholes and random nastiness?

This post is brought to you by the group dinner I was at last week, and this Pandagon post.