The other two thirds can search for something else, just like the factory workers when robots took over most factory roles.
The remaining one third, are the folks doing the jobs robots can't yet do, or doing their maintenance.
Software factories are no different from physical ones, in this regard, a few iluminaries will be able to profit from AI, everyone else needs to re-train themselves.
That's what I've had most success with. Chat to create a requirements/spec document. Then convert it into a work plan. Then feed the stages into an agent for implementation. Works great and the extra "let me know which areas should be more refined" does wonders.
I feel bad for you, truly
Thinking about what I want is what takes me most of my time
I am an engineer and, as such, are paid to think, not "just" use my hands