If so, please come visit on of the top 30 cities in the United States and spend a few days walking around different districts and interacting with different people. Don't believe what our exported media is telling you, we are far from a monoculture.
To compare your five supported languages with a country that has four official languages, and significant cultural diversity within those - and then the immigrant communities from many more equally varied nations - which is just one part of the 28 nation polity that was originally mentioned (which combined have 24 official languages at the EU level, and many more at the national level) - is just really quite silly.
However, 32 US states do declare English as their official language. That's certainly more homogenous than the EU, the original point of contention. Just 2 of 28 EU states declare their official national language as English, and only one of these has English as their only official language (indeed, only the UK has English as their official EU language, which means English may no longer be an official language at the EU level after the UK leaves).
In the US, half of all states have English as their only official language.
This is all barely to the point, though (language is only a small part of culture). While the US may not be homogenous, it is clearly more homogenous than the EU, and by a large margin. The attempt to suggest otherwise was just absurd.
https://en.wikipedia.org/wiki/Languages_of_the_European_Unio...
People from the north of Belgium don't speak the same language as people in the south of Belgium. The dialects of German spoken in the north vs. the south of Germany are so different that they struggle to understand each other. If you want an example of people speaking English, compare accents in Scotland or Wales to that of London, which is a melting pot of everything from Cockney to Received Pronunciation. Now, imagine what it is like in between countries.
Seriously, trying to say that the difference between the accents of Louisiana, Socal, New England and Chicago are a big deal, throw in the Mexican accent, hell even a good dollop of Spanish, it is still really homogeneous. Compared to Europe where there are places two hours drive away from you which share none of the languages you speak, and where you will find nobody who speaks any of the dominant languages in the area you currently are. And not just a village, or a suburb or cultural enclave, but whole cities of people.
And implying that simply because people speak the same language they have the same culture is nuts. People in Utah have the exact same language and accent as people in California but the two populations have very different attitudes about family, education, marriage, religion, and government.
In fact you don't even need to cross state boundaries. Compare Park City, Utah with St. George, Utah. Different cultures. Compare any metro area with any rural area.
(Just to clarify, I don't mean to imply EU>US, just underlining the difference's depths)
In that sense, the US has a broader base of those enclaves within the country and less time to have built a coherent cultural identity between those populations.
Europe, by contrast, hasn't forced the veneer over all of the enclaves (eg, single language), but the enclaves share a more similar historic background.
It's different kinds of diversity, really. Stable multi-components versus broader partial fusion.
Yup. Consider that in the last world war italians and finns didn't even fight on the same side until a certain point in time.
Europe is a melting pot of cultures and to be quite honest I like it that way.
Why? Because there is a bloody border in between. These are different countries, they have evolved separately for centuries. Don't you get it? Those are not two states of the United States of Europa, those are countries forged with a millennium of historical evolution.
Again USA is 300 million people, from Rio Grande Valley to Seattle. Spain has 4 different official languages, but more languages are spoken in US than Spain.
edit: I am not even counting the contrast of Native American Reservations to Metropolis like NY, LA.
just in spain alone we have 4 different OFFICIAL languages