Earlier quoted context omitted.
Yeah. How can the US be exporting more culture than any other country, yet, have less of it? Something doesnt add up. There is lots of influencal US culture. From rap to mcdonalds. We may look down upon it now, but all of tat will age into cherished cultural relics when they stop being relevant. I think the point the OP wanted to make, is that the US has less dead culture, compared to say Europe.
Can you elaborate on what aspects of European culture you think are dead?
You might also consider various fine arts to be "dead", in that their peak point has passed. Not sure if I'd argue that, but it's clearer to argue that specific schools of art meet that definition. e.g. I don't think anyone will surpass Bach in organ music.
Modern European culture isn't the part that's dead, it's that there are also "dead" cultural artifacts in Europe, while the US was basically a clean slate. That's a plus for Europe in some ways, but in some ways actually helps the US -- having to create everything from scratch, taking the best (well, maybe) of other cultures, is itself interesting. Look at Singapore for another example.