Lots of questions. Any of which I could only provide a very opinionated answer on. But to answer the bulk of your response here, I think we look to sociologists to predict the future of AI integrating into the division of labor.

Basically, the division of labor will become more organic and complex, less rigid and mechanical.

(i.e. nobody was paying bills by walking the neighborhood dogs in 1920. As technology increases, the division of labor becomes more organic/less mechanical.)

So with this Is say that "Software Developer" is not a job in the future, but that statement carries more weight than it should. The software developer of today will be invaluable as a technician working with AI. In this example "software developer" is a mechanical division of labor where something in the future might be like "Development Strategist" as a more organic division of labor. As to what that looks like, your guess is as good as mine.