The suggestion that Qantas would decide to use new, cheaper, entities to crew new aircraft unless the pilot body agrees to reduced terms and conditions is logically laughable.
It is laughable because you cannot prove Qantas would not do it - you can’t prove on negative evidence.
Furthermore, given that Qantas management are venal and entirely untrustworthy, no matter what deal you agree to, if there is a buck in it for bonuses, they will do it anyway. So voting “Yes” doesn’t help you either.
On a further, ethical, professional note, it seems to me that browbeating and degrading and otherwise abusing employees (for that is what you are) to whom you then have to entrust your $200 million aircraft, 200+ passengers and with it your business reputation, would not be seen by competent Company Directors to be a winning business strategy.
The value of the Qantas brand is held in the hands of its pilots, cabin crew and engineers. It seems management ignores that simple fact.
To put that another way, would Qantas even exist today if the A380 had gone in off Singapore and the cause was found to be pilot incompetence despite the fact of all that extra talent in the cockpit?