You're welcome to your belief, but that puts you in an extreme minority not only among Americans, but among people anywhere in the world. It's simply a fact that culture is real, that it shapes the society, and that immigrants bring foreign culture with them in ways that change the destination society. https://www.sup.org/books/economics-and-finance/culture-tran... ("In The Culture Transplant, Garett Jones documents the cultural foundations of cross-country income differences, showing that immigrants import cultural attitudes from their homelands—toward saving, toward trust, and toward the role of government—that persist for decades, and likely for centuries, in their new national homes. Full assimilation in a generation or two, Jones reports, is a myth. And the cultural traits migrants bring to their new homes have enduring effects upon a nation's economic potential.").

I'm a foreigner myself. Even though I grew up in the U.S. since age 5, the cultural difference between me and my wife (whose family immigrated here from Britain before the American Revolution) are stark. I think most Americans have a hard time understanding just how foreign their foreign-born acquaintances are, because many of the differences are below the surface: https://opengecko.com/geckoview/wp-content/uploads/2011/03/C....

This argument has no weight. First, a lot of people in the US are in favor of multi-cultural society: from St Patrick's (Irish) to Cinco de Mayo (Mexican), ... If anything, the US is a multi-cultural nation from the beginning: German was almost the official language of the US. Railroads would not have been built without the Chinese. NY pizza wouldn't exist without the Italians. And more. We need some laws obviously, but let's stop pretending the US is a single culture