It's enough to keep the company alive, but even the most hawkish US politicians aren't going to throw enough federal cash at Boeing to keep them running in anything resembling their current scale and capabilities if they go under.
Trump just spent $28 billion bailing out farmers for losses that he initiated: https://www.bloomberg.com/news/articles/2019-12-04/trump-s-2... That's more than the $25 billion bailout of GM and Chrysler by President Bush that so many Republicans railed against. Plus, the farming bailout won't be repaid, while the automaker bailout was repaid in full.
Iunno, even in the financial crisis, the feds didn't even feel it was necessary to wipe out equity shareholders when they went to bailout.
The feds could always rewrite regs to help Boeing, like limiting the grandfathering that allows airlines to fly aircraft that don't meet current safety regulations.
The Fed's didn't wipeout equity shareholders during the financial crisis because big investors were leveraged. The whole point of the bailout was to prevent losses on leveraged assets from rippling through the financial system and collapsing the whole thing.
Sure, unless the entire system is at risk of crumbling, then one may not want to cut off their nose to spite their face.
It wasn't just that everybody was leveraged, but the structure of that leverage, the short time periods of rolling over the debts and loans that would result in an extremely rapid negative feedback loop, various accounting rules insensitive to what was necessary for the system to unleverage, etc.