Why would I want to add bricks to relationships I have no interest in? You fail to understand that socializing simply isn't high priority for some people.
> It's about people who want to socialize but frustrate themselves doing so.
Where does it say that? I read it as you should just embrace your introvert gut-feeling and not attend social events just because it would be "abnormal" not to. I struggle with this myself and think it's a great advice. Some people are just not the social type and there's nothing wrong with that.