Yes but the size and complexity of their software will increase proportionally.

And? It has done so for decades already.

So? What is your point?

"Writing software will never again be a skill worth 100k a year."

First sentence of my OP. I thought it was obvious.

Which is not true, writing software will continue to be a skill worth millions, even billions. But yeah, as we will soon have hundreds of millions of programmers, on avg 100k will be a thing of the past :)