It reveals a white middle-class population not only dislodging a poor and diverse one but defining them out of the picture. Yet few seemed aware that they were doing anything wrong.
White people should stay to their ghettos, I suppose. And since "diverse" people can move anywhere (and retain their morality), those ghettos are naturally getting smaller.
Nothing about this is complicated. When "diverse" people move into a neighborhood, it sometimes causes a collapse in living conditions. If the middle-class people move out, this is "white flight" and is evil. Later on, if other middle-class people move in, this is "gentrification" and is also evil.
You absolutely cannot win with leftists. If you wonder why they are inconsistent in their logic, it is because they are consistent in their hatred.