>There's no real Us culture to preserve.

Fish Fails to Detect Water

The easiest way to see it is look at Japanese portrayals (outsider perspective). Cowboys, horses, guns, pride in our military and our free speech, fireworks and BBQs.

Just because you look down on the culture doesn't mean there isn't one.

The US is too large to have one monolithic culture but it certainly contains many subcultures on the regional level. I won't dispute they're on the decline though.