The history of the United States as a Caucasian ethnostate looms large here. When people talk about diversity, what that's code for is essentially "not racist,"

The history of the United States as a Caucasian ethnostate looms large here. When people talk about diversity, what that's code for is essentially "not racist," because the legacy of those explicit laws enforcing white supremacy takes generations to untangle - and diversity of population (and integration) is one of the important ways to slowly grind down the residual attitudes.