If my airline tried to do this, I’d be asking for a very large pay raise since I’m now 100% responsible for cockpit duties. Many assume that your eliminating the cost of another pilot, but these savings are offset by the additional pay for the single pilot, the cost of automating systems to perform duties of the eliminated pilot and also the cost of ground controllers who are monitoring the single pilot. Plus one accident and all those savings are in the toilet. I’m not even going to speculate on the percentage of passengers who will not set foot on a single piloted airliner.