Hello? Is this thing on?
As I said previously, LIFO was tested in the huge cull after 9-11. It was deemed to be against the law.
Furthermore, it is not the individual that is made redundant, it is the job/role/position. Therefore if BA (Virgin) retire a particulat fleet, that particular job role no longer exists. BA (Virgin) will be quite within their rights to declare that particular job role redundant.
Then, of course it comes down to redeployment agreements. BA is proposing to ignore the current agreement. It is that the unions must test in court.
Choose your battles. Good luck.