1) This is presenting a bank run like it is a bad outcome for the people involved. It isn't obvious why that would be so; SVB is now one of the safest banks to park money in, and the dust hasn't settled but it seems plausible to me that the bank equity holders and directors are part of some incestuous Silicon Valley relationship where they are also major equity holders in the companies banking at the bank - ie, they've benefited hugely from the de-risking even if nominally they are getting wiped out.
2) "No libertarians in a bank run" - what, did libertarians suddenly become self-sacrificing when I wasn't watching? Libertarianism is recognising that people shouldn't be forced to pay taxes to fund these bailouts and that people should be allowed to avoid the dollar while conducting business if they wish. If the game is set up so that everyone rich gets a bail out, you'd have to be an idiot not to take the bailout. Since these libertarians aren't idiots, they took the bail out. They aren't dignified, sure, but they never pretended they were going to hold themselves up as sacrifices.
3) "the Fed’s not-a-bailout of Silicon Valley Bank and Signature Bank seems ultimately to be the right choice "
I mean, if you concede that then ok but is anyone naive enough to believe that the wealthy took everyone else's money hostage by accident? It has been clear for a decade that as long as it is a crisis rich people will get free money. Therefore, the powerful have arranged their affairs so they won't lose money except in a crisis. The easy approach is letting the rules play out to their logical conclusions. People overestimate how important the banking sector is, it makes more sense to plan how to transition through a collapse and rebuild it than it does trying to hold up all the idiots currently in charge of all the important decisions. They aren't competent, that is why the system keeps trying to purge them!
Note the remarkable resiliency of the crypto system because it keeps jettisoning all the parts that go bust without rescuing them. Bitcoin's value is more resilient than the banking system right now sans-bailouts.