This passage makes me think you missed the points of the essay.
PG isn't saying "people hate people who enjoy computers and want to shove them into lockers." Rather, he's saying that status competition in middle/high school is a brutal Darwinian struggle, and those who have anything stopping them from optimizing solely for status, will lose the race.
Your comment about awkwardness/inability to hold a conversation doesn't strike true either. Rather, I felt like no one else could hold a conversation. Time has born this out; many of my nerd friends have gone on to people/verbal professions, and I'm one of the more gregarious developers you'll meet. I played a lot of sports and so had substantial intercourse with my school's popular crowd---I would not list "conversation" as one of their strengths.
Now, one caveat here: The idea that "nerds are just awkward weirdos" isn't entirely without base. I think there are two types of people who get labeled as "weird" --- actually-messed-up people, and also people who are interested in something out-of-context. The trouble with school is that, because your actions don't affect the world, it's impossible to distinguish between the two---like how you couldn't tell Einstein from the Time Cube guy (https://timecube.2enp.com/) if you couldn't do experiments.