For those of us who consider programming a way to self-realize, the potential vanishing of programming as a lucrative job definitely seems threatening. However, I don't think it could disappear entirely. Professions replaced by machinery, at a global scale, continue to thrive locally, at small scales; they can be profitable and fulfilling for the providers, and they are sought after by a small (niche?) target group.
In other words, I don't need programming to remain mainstream, for it to continue fulfilling me and sustaining me.
I expect this to be an unpopular opinion but take no pleasure in noting that - I've coded since being a kid but that era is nearly over.