Earlier quoted context omitted.
You're lucky if you encountered many intellectuals as an undergrad. But actually I think you're right - skilled white collar jobs will die out before skilled or unskilled "blue collar" jobs do. People always will need a broken car fixed, or a wall in their house repaired. The world doesn't necessarily need brand managers and analysts. Most think-work jobs in offices (which college is preparing you for) are non-essent…
I encountered a lot of intellectuals as an undergrad, actually -- and I didn't go to a particularly great school. An undergraduate education is worth what you make of it. If you hang out with idiots, you'll find idiots. Everywhere. But if you're the type of person who would succeed without a degree, you'll have far more opportunity if you can finish college. It's a fact. Also, you've entirely missed the point of what…
Regarding intellectuals at university, I also met a handful, and I bet the school I went to was much worse than yours. That said, it seems hard to argue that advanced education in the USA is promoted as a place for intellectual advancement. At best, university is marketed as a way to get a better job. At worst, it's the place where Girls Go Wild.