There is nothing wrong with congress and big government that divestiture wouldn't solve. Corruption, meddlesome litigation, constituency irrelevancy, cronyism, pork barrel legislation, over-spending, inequitable taxation, generic regulation, inappropriate mandates, and childish behavior.
The same things happen at the state level but the impacts are less onerous to the collective population of the U.S.. If we were to also divest the state governments of locally pertinent governance America could be transformed back into the United States. The challenge is to figure out how to deal with inequitable resources, inadequate response, and inappropriate behavior which does exist and will occur but can be handled because the incidents are both limited in scope and marginal in nature.
Because of technology all central banks can be eliminated and the gold standard must be returned to.