Earlier quoted context omitted.
I mean, you only have to quote the letter itself: "I have a hard time squaring the poor prospects of Europe over the next decade with the smugness that Europeans have for themselves. I spent most of the summer in Copenhagen. There’s no doubt that quality of life in most European cities is superb, especially for what I care about: food, opera, walkable streets, access to nature. But a decade of low economic growth is…
What exactly is wrong with Americans or for the most part the rest of the world valuing economic performance as a measure of prosperity and progress? Your comment is again another anecdote confirming European stereotypes. It’s not a “trap”, it’s a different world view.
A lack of self-awareness is a trap - the most insidious one because you don't know when you're in it :)
And you'll need a citation on "for the most part the rest of the world". Economic performance as the one true measure of prosperity and progress is very new, even in America itself: Most Americans have no sense of how very different their country is now from say, the country that launched the Apollo missions.