FUCK THE POLICE
911 EVERY DAY
Yet Egypt of the Phraoahs has enriched mankind forever with papyrus; America has brought the world foolishness such as American Idol and blue jeans.
Cherrypicking.
Most of the accomplishments Americans claim were actually the product of other cultures.
We like to pride ourself in being a melting pot of different cultures, each individual being allowed to produce what he likes to his/her best ability. "America" does not produce anything; our individuals do.
Our national wealth culture and power are unrivalled.

USA is a mongrel nation
Yay add racism to the mix.
with no deep cultural history
Besides some of the best works of art in the last two centuries, of course.
and after barely 200 years of existence has already defeated by small groups of guerilla fighters three times.
We gave up after being unwilling to tear a nation up to destroy disorganized militias in Vietnam, yes. Afghanistan and Iraq were stupid decisions but ongoing. They weren't serious wars. You seem to forget that we won WWII and WWI.
USA no longer has the power to accomplish what great nations must, if it ever did. The loss of your false sense of superiority may take some time to accept. Look at the British.
Uhmmm yeah.