Not trying to be a Feminist but...Possible spoilers

Do the writer/director hate women? I mean... The two blondes from the motel were just some of the most stupid characters I have possibly ever seen in a movie. And I'm talking stupid like the main characters in this film, but purely dumb. Do people really act like that or was it just the writer's idea to make them that annoyingly laughable?
Both of them were like the stereotypical "barbie girls" taken to the extreme.

'You're saying that that's a real person...underneath?'