https://en.wikipedia.org/wiki/Cambridge,_Massachusetts

Though I will note that my high school has a slight majority of blacks, and is one of the most diverse high schools in the nation.

No.

Living in Italy, there are a lot of Romanians/Albanians/North Africans in my area, but they're quite segregated

i live in sweden so, yeah, there alot of multi-culti. in my area/Community it's pretty middle class White though, but everywhere in sweden the extreme asylum-immigration last years are being obvious, here too. the integration does not work at all tho and the segregation and crime rates is extreme in some areas, we have what alot scholars call "no-go zones" now, maybe Close to a hundred, in a country with 9,5 million citizens

Nope the whole city is 99% white