One of the first things to be done to prevent damage to the US economy: you know those “businesses too big to fail?” This also means that they are “businesses too big to continue in their current form.”
Just forbidding government supports to protect the economy is not enough. That by their actions, or just by their very size, they are intolerable. So a methodical effort must be made to divide them, and if necessary to divide them again, until they no longer represent a threat.
A lot of industries need severe anti-trust, anti-competitive law enforcement.