I don’t think that’s correct. We do have a culture - a culture of striving, of working hard, of succeeding. That’s not it totally, but we do have a common language - English - & anyone who doesn’t learn it will be at a disadvantage. We have a different sense of humor, we are noticeable as ‘different’ when we travel. Europeans love to mock us.
One story for you... I worked at a university & sometime in the ‘80s we had Maya Angelou come to speak. During the Q&A, a black student stood up & asked if Maya thought blacks should go live in Africa for a time to get in touch with their culture (black identity, whatever...) as Maya had done. She had a very interesting comment:
“The only thing you will discover if you go to Africa is that you are an American.”
From your response it seems to me that you didn’t understand what I wrote because you don’t know what culture is. It is so disconcerting to me to encounter this over and over on FR. ”Working hard” is not a culture, it is an ethic and attitude shared by many countries, not a unique trait or object or continuing memory that defines a national identity.
The Europeans mock us for our lack of culture - the way you might look askance at someone who went out in public naked. That person stands out, not because his wardrobe us distinctive, but because he has no wardrobe.
Re Maya Angelou’s comment, she was saying you will discover you are not African, even though you look like them and have common ancestors - because you don’t share their culture. She was saying that they would discover that they were naked.