I like your analysis but it seems to imply that at one point we can produce near-infinite amount of software and that this will be welcome.

It will not be. Even in this fairly broken state of affairs we are currently in, most non-technical people I spoke to already say that they have too much apps and too much machines with "intelligent" features.

And IMO when we have machines that can crank out a complete-but-better Salesforce, our civilization and race would be in an entirely another level and we would see such things as toys. Who needs that antiquated procurement and tracking expenses software, where's our 174th fusion reactor? What is even that in fact? Oh you mean that nail-sized addon we put on our main processing unit? Yeah we're not interested in ancient software history now. We need more juice to capture those gases around Jupiter for the wireless beaming of energy project! Our DAG-based workflow solver and the 5 AIs around it all said we can't do without it.

...So of course nobody wants to pay programmers. We've been viewed as expensive and unnecessary since the dawn of time. A necessary evil, more or less. But your last paragraph captures why many companies need them -- bespoke solutions. You can only add so many cloud services before your normal staff starts making mistakes on an hourly basis because they have to reconcile data between multiple systems whose vendors will always refuse to make integrations.

And even if many try to have their cake and eat it too -- i.e. have an IT friend they call only for those bespoke enhancements but only pay them during that time and not every month -- then this service will simply become more boutique and expensive, mostly compensating for the lack of salary. You'd do multiple stints for the year that would cover all your expenses and normal lifestyle, it would just not be through a monthly paycheck. Why? Because I think a lot of people will exit programming. So the law of supply and demand will ultimately triumph.

...Or we get a true general AI and it makes all of this redundant in 5 years.