Back in ancient times when I was going through Dervy (DeVry), our class got introduced to vacuum tubes and did a lab or two with a 12AU7 (IIRC), but the following quarter to be taught transistor theory instead of tube theory. Vacuum tubes were becoming a niche device ... and now discrete bipolar transistors are largely displaced by MOSFETs and ICs. My point is that technology advances, displacing older technologies and processes.
Those copywriters' computers displaced Selectric and other electric typewriters, and in the process, writers who chose not to learn to use Wordstar, Lotus 1-2-3, Word Perfect, and MS Word. The best among those copywriters will (or will have already) advanced in their profession and learned higher and newer skills in writing and ?? that AI writing programs cannot do. Just as I never stopped learning after graduating from Dervy during Ford's Administration (not patting myself on the back, the alternative was a lifetime of entry-level jobs or government social programs).
I went to the thread and was mildly surprised to see that only a few went full-Luddite or Marxist. More pointed out that HVAC is a very remunerative career field or that technology creates career fields as well as ends career fields.