I lived a short time in America and saw things that are unthinkable in Europe.
Whites lives mainly in the rich suburbs of cities, black people in poor houses or buildings in the center, white people generally drive in the cars, black people in public transport etc.
The difference in living standards between blacks and whites is huge and it just creates resentment and anger among blacks.
Related to that, white people get better paid jobs, they go to better schools etc.
These are great and the structural problems of American society that can not be easily or quickly resolved.
The recent massacres are unfortunately only one of the consequences of these accumulated tensions in American society.
I'm not optimistic that this problem, which has not been solved in the past 200 years, would soon be resolved and that blacks and whites will be completely equal in American society.