I forget who wrote it, but I read an article a few years ago about how the reason for all of this has to do with sex, or more accurately the lack of it. When doing something, there's always two approaches: double down or back away. In the case of these people, they reiterate the same racist and "reddit-ey" thoughts hoping that men will have sex with them. When the men flee in terror, they double down as stuff like twitter/facebook has suggested that it isn't so much their ideas are bad but that they aren't trying hard enough. It's why there's been a huge upsurge in women in their late 30s becoming lesbians, as they eventually hit a point where they cannibalize themselves like rats on the titanic.