That is a staggering thought.
Go look up Highland Park, Michigan. It is completely surrounded by Detroit. Once a booming White majority suburb of over 50,000 residents, it now is a nearly third-world slum of about 10,000, of which only 300 (as of 2010) were White. Even Detroit doesn’t want it (it did 90 years ago).
It has a sister city called Prichard, Alabama. Also once a majority White suburb of Mobile of 50,000, it now has barely above 20,000 and 90% of the Whites have left (and for that matter, 1/3rd of the Blacks have fled, too, since 1980).
Very sad places that are premier examples of incompetent, corrupt, far-left, racist leadership that thought they could get along fine without Whitey and the middle class.
I was born in Chicago, but my family left in 1950.