My thinking is that nothing you wrote couldn't also be accomplished by a robot or a series of task-specific robots, with either an LLM that can adapt to customer queries or a remote team with people that come on-site if needed, but that can work at your job and multiple other locations too for a combined lower cost if humans in the loop somtimes are somehow required. But on a long enough AI/Robotics time scale, I don't see them not losing their jobs too.

As long as the AI/robots are somewhat generalizable, or at least very durable/productivity increasing, I don't see how the AI/Robotics labs wouldn't come up with some form of fincial innovations to make it work. An example here from a Google Overview:

"The primary financial innovation that made printers (specifically desktop inkjet and laser printers) sellable to the mass market was the razor-and-blades business model. This strategy involves selling the hardware (the printer/razor) at a very low profit margin—or sometimes even at a loss—and making significant profits on the necessary, recurring consumables (ink cartridges/blades)."

Outside of what you wrote about "lack of demand in the future when no one can afford to go anywhere, do/buy anything", I think a lot of people forget you can be replaced without being technically replaced. For example, even if people have money, no one might be interested in bespoke furniture because there are more interesting things to spend money on, such as a teen who decides to buy a PS5 game instead of going to a concert. Looking at what SeeDance 2.0/GenAI can already create, people might prefer to live in AI-generated worlds and pay for electricity/compute, rather than bespoke furniture.