It isn't as diverse as some other parts of the country, but there's groups of people from all over the world. Within a 2 hour drive from me, you'll find enclaves from Korea, Vietnam, Somalia, Mexico and others.
I know an Englishman who lives in an Indonesian village (not an enclave). He is constantly reminded that while his presence is cherished, he isn't, and never will be "one of them." He still loves it, though, so there's that.
What on earth makes you think they are second class citizens? They vote, attend school board meetings, own homes and live just like anyone else.
In my neighborhood I would say at minimum 25% of the home owners are non-white families, if not more.
Bunch of representative bias anecdotes, mostly be people who don’t live there, or haven’t in 20 years.
And yet, if the same environment were to be encountered in another country, it would be “culture”.