When people lament the alleged fall of America from some golden age to modern decay, I have to wonder how carefully they have considered the last 115 years of history. Two massive factors, which have nothing to do with "American Exceptionalism", played an overwhelming role in making America the economic powerhouse and, in turn, military powerhouse:
1. The one-two punch of two world wars fought on the soil of those countries we compete against. Those two wars, while inflicting millions of casualties on American soldiers, inflicted ten if not twenty times more casualties on the combined rest of the warring countries. Both wars were fought over foreign soil - the same soil occupied with those who are in economic competition with us. Infrastructure, buildings, everything was smashed over huge areas of land. That set those countries WAY farther back then we were set back.
2. The economic suicide committed by those countries who could have seriously challenged us economically had they not become totalitarian socialists: China and the Soviet Union.
Our lead in economic potential following the two world wars had way more to do with our lead in 1945-70, etc., then did any sentiments about how exceptional people who decided to be born on American soil are.
I just noticed that you blamed the alleged downfall of America on the desire to grant the equal protection of law and the due process of law to gay people.
I probably wouldn't have typed anything if I'd seen that the first time around...