These bailouts -- and the decisions if a pension fund should be forcibly closed -- are political in nature. For example, Biden bailing out the Teamsters pension fund (https://bidenwhitehouse.archives.gov/briefing-room/statement...) or the decision by congress to ignore the fact that CalPERS has continuously below the 80% recommended funding for non-governmental pensions putting a 1.7T time bomb in play.
In essence, government is failing to play one of its more essential roles of regulator.