Personal websites etc, you don't think about them as software products since they weren't built by engineers, but 30 years ago you needed engineers to build those things.
Ok, well I’m not going to worry about my job then. 25 years ago GeoCities existed and you didn’t need an engineer. 10 year old me was writing functional HTML, definitely not an engineer at that point.
I think the fear comes from the span of time. If my job is obsolete at the same time as everybody else's, I wouldn't care. I mean, sure, the world is in for a very tough time, but I would be in good company.
The really bad situation is if my entire skill set is made obsolete while the rest of the world keeps going for a decade or two. Or maybe longer, who knows.
I realize I'm coming across quite selfish, but it's just a feeling.