"If the taxpayer gets stuck bailing out the PBGC, so be it. The public has spoken. They want cheap seats with little restriction."
Somehow I fail to see, what the public has to do with this. Yes, they want cheap seats, so I guess the company will have to find a way to give them what they want, or offer such service that they are willing to pay more.
If a company is not able to offer seats that the public will pay for and still be able to pay its bills, then it must go to the big place in the sky.
The PBGC is indeed to insure pensions, but not to be used as a dumping ground for companies trying to cut cost, which is what UAL is trying to do. Now, if the UAL employees is willing to totally give up the retirement, ie divy up what remains between all, and cancel it going forward, that is certainly their choice.
Of course, UAL does have some very lucrative assets, that can be sold off for top dollar, however, as is understandable from UALs point of view, they are unwilling to do so. Having said that, it does remind you of someone wanting to keep both the Benz and the chalet in Aspen, but not being willing to pay the mortgage on the main house.
UAL aquired many of their most lucrative assets from carriers, that faced the exact same problem as UAL is now!