For Starship, there's absolutely no way a human could fly it anyway. Even if it weren't fly-by-wire, a human could not control the drag fins and the engines precisely enough to land safely. Even on Crew Dragon, which will (hopefully) fly in the near future with crew onboard, there isn't a hardware joystick. If the vehicle fails to the point where the computers aren't working, your only option is to deorbit. These spacecraft weren't intended to be flown manually.