For goodness sake, can people please stop using the FE and navigator argument as to why droids are replacing us?
FE/Navigator - Highly technical jobs easily replicated by a computer or the Pilots up front. They made no command decisions and their decisions were always routed through a pilot in command.
Pilot - Has command authority over a flight and directly affects the lives of the passengers. The FO isn’t just there to make the coffee or wake the Captain up, it’s called CRM, and preventing some whacko from going Germanwings.
Apples to Oranges comparison.