Football.

america is also composed of spanish irish italian black dutch native American german asian culture to name a few

While that may be true it's very much in the same way that Roman culture is the basis and founding of Modern Romantic cultures. It's to degrees and the more derived and hybridized the individual cultures are the more distant they become, not even accounting for cultural drift by time alone.

But I will also note that I don't think the US has a united culture and what is often seen as a Pan American culture is moreso a side effect of the post World Wars migration, the migrations of the great depression/dust bowl, and the yuppies migrating about creating a rough amalgam culture that often out populates the older more divergent regional cultures. Basically if you think of a cultureless suburbanite that's the thing I'm talking about. Also I think mass media reinforced the whole thing.

The foundational European culture of California is Spanish.

Heres the thing I don't think there ever has been a unified American culture, as soon as assholes started to step off this boats there was already inevitable cultural divergences happening, for example the Massachusetts Puritans who were theocratically driven, the Marylanders who were driven by proto-secular ideals, and Valirginians who were economically driven. While the Mid-Atlandit and New England cultures did reconverge over the last century of so, Coastal Southern especially the rural variants is still noticeably divergent from the rest of the east coast.

Also I'm just gonna note that everything you listed is caused by top down economic pressures that are arguably on the verge of collapse. One of the things you have to factor into your analysis of American cultures is that all of them are subject to federal level pressures meaning that even the most communal cultures for example still have to participate in capitalism due to say taxes since that's basically the only way to earn cash. I suspect once the feds collapse you'll see a springtime of nations and the possible death of the Pan American amalgam culture, at least within the first 20 years or so.

Well that and also a lot of us North American ones can trace our culture back to the Unions of old and to a more abstract extent a Scottish striker group who were also called Rednecks, so we have that to take pride in really it's mostly the boomers and Gen X who tarnished our name silent, greatest, and lost were proper feral and militant against the corporations at times. But yeah Redneckism is basically the inevitable end result of people being too smart, unwise, and not having enough money to do a job proper proper.

While language influences culture and culture influences language they are not the same by any means. Plus within the last hundred years the US has become increasingly mono-lingual in favor of English, according to my great great aunt for example when she was a little girl her father would still speak to himself in a German dialect because German was his first language since he was from a German town. A lot of these minority languages have either naturally due to trade or whatnot or via force from the feds been on the decline or are now extinct some of which predated the founding of the US. A similar thing happened with a lot of regional dialects.

Also define so called high culture? Because frankly given how much of Europe once shared a Greco-Roman high culture irrespective of their own regional cultures I'm gonna call that a potential irrelevancy.

Being below average height is where it's at. I rarely bump my head on anything. I'm a smaller target for gunfire (am American). I have never had an issue finding clothes or shoes in my size. The world is built for me. And I guess 5'8 ain't too short, but it's below average, and so I've accepted it.

Tech she said, definitely wasn't embassy. What embassy would have Americans and people from the UK working together?

‘Yeah well we were conquered a millennia ago, so actually you’re not allowed to complain about what is still ongoing to you‘ is the dumbest Brit cope I’ve run into. Implying they should be grateful for it is why Brits are still reviled.

Defence against what? Britians enemies?

Defend your own western flank. Its your problem, not ours.

Exactly.

Celts didnt "conquer" the Beaker's.

Beaker people are part of the ancestry that developed into Celts.

Computer says no

That one.

In addition to his other talents, this dude has some pipes. He killed it in the 25th anniversary of Les Mis on PBS, a production marred by casting a Jonas brother in an important part, but Matt Lucas was awesome as one of the innkeepers.