Take your own advice and hit the bars to relearn some social skills. Step outside your quiet, surly, critical, insular INTJ bubble a little more often and you'll realize that humans are not mere yes-no, right or wrong information-relay machines.
Did you read his whole post before your eagerness to go off on this tirade consumed you? He pretty clearly does step outside his bubble and derives a lot of joy from socializing. Are you upset because he doesn't like everyone he comes across, or what?
Yes, I read his whole post. No, actually the tirade did not consume me, and no I am not upset.
I think his issue is not that he doesn't like everyone that he comes across, but that he does not understand fully what socializing involves, and the effect of this is that his perception of other people is negatively altered.
So which parts am I missing out on exactly? The problem is that people really do have different theories and motivations about why they are going to various social events. Some people go with the conscious goal of trying to sleep with someone that very night. Others are going "just to dance" and going home with someone is against the rules of the group you came with. People in the former group would describe the later as "cockblocking." Others are going to get as intoxicated as possible. A different group of people is trying to do business networking. Some more people might want to see how those people they haven't seen in a while and reconnect with them. Some people like to stand around and take pictures of themselves and post them on social networks. Other people have this theory:
Here are our two glossary terms for today's assignment.
bubble sort
pecking order
As cynical as it is, I do sometimes take this perspective that human beings have social dynamics that are similar to a wolf pack. This seems to be mostly a male thing. It's a hierarchy with the alpha male at the top, and everyone else is acting like 'unwelcoming personalities' and 'egotistical enemies,' developing that behavioral code so you can shame others into being 'gay.' I guess that night if you don't like Toy Story 3, you're gay. That's one way of interpreting it.
And I'm an INFP damn it! 
All kinds of social activities including clubbing and parties are underpinned by courting. And there is definitely an alpha male/pecking order hierarchy that undermines every point of socializing. You can study those two things in your free time if you want, and learn more about it, but that is not the point! And it doesn't matter in this context. The point is that you were killing the mood when you said Toy Story is a movie for kids. And you should understand why.
Inconsequential bullshit is what quality socializing is made up of. Ironically, by calling it that, you couldn't see past what it really was. The inconsequential bullshit itself is superficial, the human bonding that underpins it is the crucial and important feature of socializing. You shouldn't be seeking to learn something practical from every encounter, that destroys human meaning. For example, I tend not to learn very much at all from seeing my grandma, but I still like to see her, and feel happy when doing so.
As an aside, those who prefer a strict utilitarian, manipulative, psychopathic paradigm of thought have the opportunity to become great, very high achievers in society. For example, Agathocles.