Those are all possible but they would have hurt the US financial dominance on the world stage. A lot of those decisions are ultimately based on imperial goals, not on the wellbeing of the citizenry (in the near term anyway, I'm pretty sure the people making those decisions believe they are thinking long-term.)
They didn't want the US banks to be bought out by Asian or European interests.
They didn't want the US banks to be bought out by Asian or European interests.