The mind of America has always been multi-cultural. America has embraced Catholics, Jews, Buddhist, Hindus, and Muslims as citizens.
It's the right of any citizen to participate in the body politic.
I usually agree with most of what you post, but in this instance?
Not so much.
There is a difference between "multi-cultural" and "diversity."
Americans, up until this last past half-century, have always been diverse. Yet we have always strode to create ONE CULTURE.
Since the mid-sixties, early seventies, yes, there are now forces at play that wish to divide, separate and create isolated pockets and balkanize American culture.
Most folks just want to be part of the mainstream, no matter who they are, black, white, gay, straight, male, female, christian, jew. . .
. . . yet some would like to create separate enclaves. It is true.
diversity
di·ver·si·ty
/dəˈvərsədē,dīˈvərsədē/
noun
noun: diversity
the state of being diverse; variety.
"there was considerable diversity in the style of the reports"
a range of different things.
plural noun: diversities
"newspapers were obliged to allow a diversity of views to be printed"
synonyms: variety, miscellany, assortment, mixture, mix, melange, range, array, medley, multiplicity; More
multicultural
mul·ti·cul·tur·al
/ˌməltēˈkəlCH(ə)rəl,ˌməltīˈkəlCH(ə)rəl/
adjective
adjective: multicultural; adjective: multi-cultural
- relating to or constituting several cultural or ethnic groups within a society.
"multicultural education"
There is no such thing as a nation that ever survived for very long that was ever multicultural. Diverse? Yes. But not multicultural.