- Crime is generally higher in black areas
- Black people are more likely to live in poverty due to a long history of slavery, segregation and discrimination
- Poverty can also lead to a host of issues such as kids being brought up in single parent households, alcohol & drug problems, low attainment at school, lack of opportunity, gangs etc etc
- There is a strong correlation between poverty and crime levels
- Black people may be more likely to be arrested, charged, and convicted of the same crime than white people (after being charged this is no longer the responsibility of the police, but of the judicial system)
- There may be issues with systemic racism within the American police that skews arrest figures and officer / black civilian shootings
- A higher police presence in poverty stricken black areas may lead to higher numbers of arrests for crimes that would go unnoticed in white areas
- There is a problem with training in the American police where they aren't sufficiently trained to de-escalate threatening situations (with people of all races)
- There is insufficient firearms training (British firearms police get much better training than American cops despite the much lower chance of ever using a gun)
- There is a fear of being shot that leads to the use of lethal force where it may not have been necessary (this leads to the deeper issue of gun rights and laws in the USA)
I don't know the answer, but in order to find it, we would need to drill down deeper into the statistics and control for a number or factors to determine whether more black people are being killed due to systemic racism or not.
The fact remains though that per head of population, more blacks than whites are being killed by the police, and therefore it's understandable that many would like to see this change.
Ideally, there would be no deaths of any race at the hands of police, but maybe simply aiming to get closer to zero is a commendable (if optimistic) target??