Over 180 countries have freedom and democracy, the U.S being one of them. There is absolutely no evidence to support that the U.S is the best country in the world.
The U.S is:
7th in Literacy
27th in Math
22nd in Science
(The U.S education system is NOT the best)
49th in life expectancy
178th in infant mortality
(No wonder those teen "pregnancies" are so low)
3rd in median house hold income
(Not the best income)
4th in labour force and exports
(Does not have the lowest amount of unemployment)
The only places where the U.S is number one is:
1st in Number of imprisoned people per capitia
(Crime is NOT low)
1st in Number of ADULTS who believe angels are real
1st in Defense Spending
(Where we in number one, spend more than the next 26 countries on the list combined! 25 of whom are allies. Peace my ***)
And to top it off has had the most Racism witnessed from any nation in the world: Ranging from enslaving the Africans to the brutal beating of the Japanese similar to what the nazi's did to the Jews. Even now people call Muslims terrorists, and groups like the KKK still exist! And you can tell me people are treated fairly, men and women get along without problems, and that there are no hate groups.
So do YOU have the right to claim that the U.S is the BEST country in the world? It was once the country that did stand for the good, the country that was united against poverty, not poor people. The U.S was once the best country in the world, but I am sorry to say it is no longer the best in the world.
So your question is wrong, there are no reasons the U.S is really the best.