The obsession that a lot of Qantas staff have with Jetstar is just a convenient distraction from the reality that Qantas is way to expensive in the modern airline market.
Ollie, I think you missed the point - Qantas staff are pissed off at the way mainline funds are used to prop up Jetstar and all its franchises. Jetstar Domestic in Oz may be able to stand on its own but J* Intl and the many Asian franchises definitely can't and mainline is being staved of cash and replacement aircraft to fund Jetstar. We have had to abandon profitable routes (SIN-FRA, BKK-LHR, HKG-LHR, AKL-LAX & perhaps SYD-JNB, etc) due to not having enough aircraft. All the funding for mainline replacements went to funding 110 A320's. Now you might understand why mainline taff are very pissed off.