These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
The viewpoint of the Freud Was Right perspective is scarily accurate considering today's viewpoint. Look no further than the Freud Was Right page and realize we had to make that page a YMMV page when it was originally considered a standard trope. Even look at the All Psychology Is Freudian page.
Hilarious in Hindsight: The worship of Henry Ford looks even sillier given the direction of his namesake company and the U.S. car industry as a whole.
Squick: In the casually promiscuous society in which the book takes place, it is considered healthy - even endearing - for young children to sexually experiment with each other. There is also a memorable passage pointing out the more Freudian aspects of breastfeeding, and the descriptions of John's mother.
Unfortunate Implications: On top of some of the more sexist and racist sections under Science Marches On, there's an In-Universe example in one of the "feelies," which features a woman being kidnapped by a sexually voracious black man and having to be rescued by three dashing, virile white men, whom she promptly rewards with sex.
If you want further proof, just look at this◊ (illustrated version of part of the introduction to Amusing Ourselves To Death by Neil Postman, which can be read here in full).
The Woobie: Poor, poor John "The Savage". As if growing up bullied and ostracized by everyone was bad enough, he ends up despising the very world he thought would be his one salvation. And after being ostracized there too and paraded around like a circus animal, he chooses exile. After the curiosity seekers chase him even there, and after betraying his beliefs in a drug-induced stupor, he is finally Driven to Suicide.