Where will this explosive growth in SW keep coming from next? How many more music streaming apps does the market have room for? How many food delivery and ride sharing apps does the market have room for? How many more social networks and dating apps does the market have room for? How many more digital payment processors, stock and crypto trading platforms does the market have room for?
Just like with every job in history, the demand for SW jobs can't continue at the same high rate indefinitely, eventually you'll run out of things to digitize and monetize by moving to the internet/AppStore while also having too many candidates in the industry.