Amy is the film's biggest misogynist

She scorns the neighbour whose stupidity provides her with her baby narrative.

She scorns the 'Cool Girl' type that men like Nick desire.

And the one instance that really has me giving the middle finger to Amy is not her, admittedly clever, if sociopathic framing of Nick and the other men in her life. No, it's the time she spits in her female motel neighbour's drink and thus displays her stuck-up contempt for the lower orders, because Amy hates nothing more than working-class and/or less cultured and educated women (i.e. the types who weren't raised with a trust fund and a private education).

She's the embodiment of white upper/upper-middle-class female entitlement. In other words, the typical feminist, and ironically the type of woman who hates any woman who isn't white, educated and rich.