It is NOT the govt's job to re nationalise Qantas. They thought the best guys for the job were employed to run it, I don't think you can lay personal blame that a board approved (nay, set out to complete) mass destruction of a world beating Icon over 15 years on various governments.
The tragedy is, by the time they have finally 'announced' the ruination of Qantas, it rates little more than a footnote in a Melbourne paper. They have trashed it to the point no one cares.
How long will Jetstar last on its own? With nice lounges admittedly....