Because we don’t see it as something for them to be legitimately upset about, except that it’s going to disturb their ivory tower unserious profession.
If AI got significantly better at performing surgery overnight and doctors started crying about how they were going to be replaced, what do you think the public response would be? Non-doctors want the best possible care; they aren’t interested in protecting an industry. The same will be said for pilots and lawyers, too.
People dislike self-serving whingeing, end of story, but that’s doubly true when it comes out of a profession (theoretical mathematics) that is mostly practically useless.