You nailed it on the head, down to the exact examples.

I was still in high school in 2010, and was told the same thing about outsourcing to India/SEA/etc. making a CS degree/career (in the US) a terrible choice. It wasn't just random people saying this either, I was reading about it in the news, online, had some family acquaintances with alleged former software dev career, etc. I didn't listen, and I am glad I didn't.

As I was graduating from college, and deep learning was becoming a new hot thing, I heard the same thing about radiologists, and how they are all getting automated away in the next 5 years. I had no plans to go to med school, and I didn't know anyone at the time who went through it, so I didn't know much about the topic. On the surface, it seemed like a legitimate take, and I just stored it in my head as "sounds about right."

Cue to now, I know more than a few people who went through med school, and am in general more attuned to the market. Turns out, all of that was just another genpop hype, those news articles about "omg radiologists are all getting replaced by computers" stopped from showing up on any of my news feeds, and not a single radiology-specialized med school graduate I know had any issues with getting a job (that paid significantly more than an entry level position at a FAANG).

I have zero idea what point I was trying to make with this comment, but your examples mirror my personal experience with the topic really well.