The founding fathers took a massive chance that a bunch of colonists who didn't really have much in common would band together to somehow take on the greatest and most advanced military in the world at that time and prevail. The idea to declare their independence from the king was a high-risk gamble with serious consequences.
The American Experiment survives because we as a people are not only resilient but eternally optimistic. We survived 1812. We survived 1861. We survived 1941. We survived 1968.
I'm proud to be an American but not proud of what the country represents right now. It may not seem like it today but we will survive this because we've always had the willpower to eventually do the right thing when pushed to the limit.
Despite our massive faults, we are the envy of the world when it comes to standard of living, freedom of choice and innovation. We're still the only country to land humans on another world and get them home safely. As shown by the visitors to the World Cup, America is still full of wonderment that sometimes we overlook or take for granted. Our potential is only limited by the restraints placed upon us by incompetent leadership.
Happy birthday, America. You still look good for 250.