I think virtually anybody who wants to see Boeing succeed long term, would get on board with this option.
At the same time, the FAA needs to be reformed (and funded) to bring it back to the enforcement agency it should be. They got into bed with Boeing and their lack of oversight in civilian aircraft let the corporate sickness fester and have a safe space from which to spread throughout the organization.
I agree with others here that think they need to be a quasi-government-run company, but in the US that is done through oversight, managing the manager rather than stepping into the management role directly. Of course we have to absolutely gut that awful management with extreme prejudice, to start.
Fire all Boeing senior leadership, go through the remainder of the company with a fine toothed comb and fire anyone mid-level who did anything dumb, then conduct a search to replace everyone.
Make the government an explicit stakeholde (25%?) with board representation.
Dilute shareholders ($0.50 per dollar?) for investing in a bad company, but make any employee shareholders who are still employed whole ($1 per $1).
The problem isn't that management assumed that there would be no market pressure, the problem is that management assumed that engineering and production excellence "just happens". They're not dumb enough to believe that shoddy products won't effect their financial position - they just don't know how to make non-shoddy products while also posting decent financials.
You're right about the difference, though - they're stable, well-run, and with a solid balance sheet, and it's clear the tradeoff for being effectively the Bank of the US is they're regulated and stress-tested six ways to Sunday.
If that were the model being applied to Boeing, this'd be a different story, but I think there's been a clear decision made that Chase is critical infrastructure and should be treated & audited like it that hasn't been made about Boeing yet.
(As I noted elsewhere, they're treated much differently than Boeing, in that they're audited, stress-tested, and generally put under the kind of scrutiny warranted by that kind of role.)
Letting them merge with McDonnel-Douglas was a mistake.