Tools like email, instant messenger, and online calendars made
secretaries much more productive which increased demand for the skills. Wait...
Replacement of programmers will follow these lines. New tools, like copilot (haven't tried, but will soon), new languages, libraries, better IDEs, stack overflows, Google, etc will make programming easier and more productive. One programmer will do the work that ten did. That a hundred did. You'll learn to become an effective programmer from a bootcamp (already possible - I know someone who went from bootcamp to Google), then from a few tutorials will.
Just like the secretary's role in the office was replaced by everyone managing their own calendars and communications the programmer will be replaced by one or two tremendously productive folks and your average business person being able to generate enough code to get the job done.