Would expatriate Australian pilots return home and fly for 50% less than the current Virgin or Jetstar pilots now? I doubt it..
Soooo all these expats are just a bunch of wingers then and have no real interest in living in Australia?
If Australian Airlines offered DE Commands even at 50% of current command salary you would be crashing your servers just trying to keep up with the response. Then that doesn't include all the non citizens with the right to work and abode in Australia. Not to mention everyone the Airline could sponser.
You see what has happened in Aviation in Australia is that the Airlines now view every role in isolation and not as a progression up the tree. They do the same with LAMEs too. So basically they will just go cap in hand to the government saying look there is noone with any command time in our airline we need to sponsor Captains from overseas who have command time.
It would decimate the Aviation Labour Market in this country for the next 20 odd years, by which time you would HAVE to employ expats as noone will be trying to be a pilot anymore.
So yes you are right removing Seniority would increase salaries......in about 2045