Perhaps we should start by installing vending machines in the cabin with a subsequent reduction in staff therein.
The airlines would have done that years ago but for one small but significant fault in your argument.
Cabin crew are there to pick up the pieces when the pilots screw up.
It's a fact that the majority of aircraft accidents are caused by pilot error so if they automated the flight deck even more and had less pilots it will be even safer.
On the other hand the more passengers the more cabin crew.
The flight deck has not been automated to save money nor "make the job easier". It has been done to enhance safety.
Nice idea Oh Spare me,so what you are saying is that they automated the flight deck to get rid of navigators, flight engineers as well as some S/O's on some flights to enhance safety.
If you are it means that pilots are on the endangered species list because the majority of accidents are caused by pilot error.
'single pilot' commercial aircraft ain't gonna happen this century.
Sure,Sure they won't