I think the negativity and misogyny actually does serve a useful purpose. I’d rather see this being done without it, of course. But I understand why it works.
In my experience, romantically challenged guys tend to start regarding attractive women as unapproachable creatures, removed from the realm of ordinary humans.This psyches them out, and undoubtedly makes their interactions weird and awkward. The misogyny serves to make attractive women seem a little more human, and a little more flawed, and thus more approachable.
Living up to some perfect ideal a guy has made up in his head without even knowing you is also not fun for a woman to deal with. If you’ve gone out to a club hoping to hook up with someone, you don’t want to be the subject of some dudes elaborate love fantasy he’s already planned down to the minute in his head. I think the misogyny also helps some guys be realistic about what they are going to get out of picking up girls at a bar. While you might meet your dream princess-wife-bunny, in reality you are probably going to find a cute-ish girl to hook up with for a bit. The misogyny helps guys take their expectations way down, and realize that they can still have fun with a less-than-perfect woman in a casual arrangement.
Likewise, I think a lot of romantically unsuccessful guys just have trouble imagining the normal, attractive, decent women actually are sometimes looking for a casual partner. Men sometimes think that women have magic sex lives, where wonderful men are constantly throwing themselves at our feet as we gleefully choose among the rich and handsome ones. They find it hard to believe that we are not necessarily looking for a walking wallet, and often we would be receptive to an ordinary guy who’s engaging and funny but otherwise unremarkable. Maybe the need to feel like they are “tricking” us into sleeping with them, as that’s the only way it reconciles in their head.
Anyway, for most people, experience tends to eventually fill in the gaps. If you meet and have fun with enough less-than-perfect women, eventually you start realizing that there is more to a good partner than chasing superficial physical perfection. Even if you have to use negativity to get up the guts to talk to a woman, eventually you are probably going to realize they are neither goddesses nor monsters, but just people like anyone else. I’ve somehow managed to meet a lot of these guys as friends, and eventually they get frustrated that they get lots of tail, but nothing ever seems to bud into a deeper relationship.
I think most guys eventually get bored of it and move on, the way most guys without a system eventually get bored of single life. Some stick too it, of course, but skeezy middle-agesters are hardly a new phenomena.