The most important truth the USA must come to terms with is that we have become a rogue terrorist State imposing our will on all small non-nuclear nations in violation of international law, of which we were the primary authors of during the Nuremberg Trials.
By making dramatic cuts in defense spending we can reinvigorate our domestic economy.
The second important truth is to realize that free unregulated markets do not promote the general welfare. They promote the .001% and monopoly practices. The Nobel prize winning economist Milton Friedman was either a liar or did not know what he was talking about.
The most influential foreign policy advisor in the USA has been Henry Kissinger. His motto is: “Control food and you control people. Control oil and you control nations”. This policy is behind the US persistent failed attempts to dominate the planet by force.