

I think there’s multiple ways it can happen. Sometimes, incoming cultures aim to be inviting and inclusive, and do what they can to become involved with the surrounding community. But other cultures really silo themselves and never speak to “the foreigners” - while continuing to take up more and more of the area. They speak their home language, don’t discuss the existing culture or even share their own. They don’t act like guests, just tenants - sometimes not realizing that thanks to refugee programs they’re often paying “guest rate”, not “tenant rate”.
However, that certainly isn’t always the case. I’d point to the Italian and Hispanic cultures in America as some that have become distinctly American. It’s harder for me to give examples of the “silos” since, by definition, you don’t see much of them; but sometimes during elections, church gatherings, or other census-related actions, you’re reminded they exist.
My understanding is that they also aim that way to reduce moving parts - since knobs, buttons, and switches are more likely to fail after 5000 uses. That, and they can update touchscreens to do whatever they want differently, like serve up ads.