I also feel like the demand is way, way lower. A pilot can't be that large a % of the cost of a flight. Maybe if we lived in the jetsons era.

The problem is actually safety. As automated systems get better, the pilot is left with not much to do, and has to maintain vigilance while being really really bored. It is almost better to have fewer automated systems and give the pilot more things to do during the flight so it is easier to keep them paying attention, or all automated with no human pilot to mess things up.

Depends on the size of the plane, really. One of the reasons a few companies were investing in fully autonomous air taxis is because the math on a small piloted aircraft wasn't realistic for a low enough price point to be competitive.