system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: The QANTAS groundings

I can't really get my head around what's happening, can anyone break it down for me?

What does it mean for staff to be "locked out"? Why are they being locked out? What is the QANTAS management trying to achieve?
gpt
Qantas management have essentially said that the demands for which their unionized workers are currently striking would bankrupt the airline, and have therefore halted all flights until the strike is resolved.

The unions argue (among other things) that Qantas posted increased profits at the same time as they are cutting jobs and denying raises, and somehow managed to increase their CEO's salary by over $2 million a year.

The Australian government looks as though it's about to legislate both sides back to work while the strike is resolved by arbitration.