Sure you do. But my wife is old enough that you wouldn't call this very, very new (thank god this is an anonymous posting).
Back to the original point you were discussing, I think it's important for any nation-state to have a shared culture and narrative (even if not completely true) that helps bind the people together. Regarding the narrative, it has to include, at least in part, an ideal that the nation represents so that people will want to fight for it or serve in the nation's interests. Even if the nation hasn't exactly lived up to it or achieved it yet.
The problem 8s our shared narrative intentionally excluded people until the VRA and CRA. So yes, your family, my family, Co's family could pretend to have a shared narrative. That wasn't true at all for other families.
I get the point. I don't really know how shared narrative thing works in the UK, the Irish, Welsh, Scots have their individual narratives that are not necessarily the same as the English.
Over the weekend I was thinking of this in a different light. Many places have deals where those willing to pay can jump to the head of a line (amusement parks, airlines, Gencon has it for housing). There is something to the shared experience of rich, poor, Black, White, all waiting together. We have really done away with that.
There is a Frank Burns quote from MASH I love, "Unless we each conform, unless we obey orders, unless we follow our leaders blindly, there is no possible way we can remain free". In this debate, it is the conform part. Do we have a national culture when some of us like soccer (for unexplainable reasons)? Is it a national culture if I eat burritos, you eat lobster, and another eats vegetarian? Is it a national culture if I watch Ted Lasso, someone else Yellowstone, someone else The Bachelor?
Culture tends to be about shared foods and shared activities, shared religions. Which of our sports are we going to eliminate, which foods must we eat to be American (I assume the hamburger), which religion will be the accepted religion.
It seems we love choices, until people make choices we would not.