Plenty of other professions were hit by computing. Part of why programmers are so emotive about this concept (other than the fact that emoting online loudly seems to be much more accepted in software than other professions) is that programming has never been threatened in the same way as other professions have been until now.
My parents-in-law started their careers as management consultants. The job in their time was much higher prestige and much higher value than it was when I started my career; free flow of information over the internet and commodification of spreadsheets changed all of it. From my parents' generation, I know practical effects folks who became unemployable once movies went to digital effects; engineers who found their draftsmanship skills obsolete. Folks with near-photographic memories whose entire superpower was destroyed by computing. I personally grew up in a blue collar community that was income depressed because its labor became commodified, though that was due to mechanization.
FWIW, I agree with pretty much everything you've said. But I don't think it's unique to any profession or individual that they tend to care the most deeply when it hits them directly.
The only thing I don't really agree with is where you say "My parents-in-law started their careers as management consultants. The job in their time was much higher prestige and much higher value than it was when I started my career." I still think of management consultants as some of the highest paid careers around, and getting a partnership track job at one of the Big 3 is one of the most desirable jobs (for MBA types anyway) there is, so I just don't know what you're talking about with this one.