Girls like those tend to think very highly of themselves, when in reality they're typically seen as "those bitches nobody likes" and are often the most isolated group of all. Ironically they only stick together because they have no choice, as they always hate each other just as much as they hate everyone else.
There seems to be some hope for Fang Bitch though, she's pretty much realized there's nothing to be gained by hanging around them. Next step is telling them to fuck off and taking Mk II's spot as the otaku princess lol