support.
The population did not age over night, life expectancy did not increase over night.
The ecconomic down turn did not occur over night, and has been predicted for a while.
If it is not possible to support a long living pensioner population from the schemes, then this must have been apparent for decades. If the scheme needed to be made "less generous" then it could have been done decades ago, with ample notice that from a certain date, new people entering the scheme would do so under a different set of terms and conditions, and they could then have decided whether to to enter the scheme at all. they would have choice.
What they can justify, is to keep signing people up, so that pensioners with 10, 20,30 ,40 years of contributions suddenly have their legal terms and conditions changed andf their pension decimated. These people have no choice, they have no opportunity to make different financial choices and no chance to change their provision to make up for income they have been told to expect for perhaps 40 year.
Murdoch was pilloried for pension theft. Public sector worker are being pilloried for objecting to the government doing the same thing.