Let's talk about misinterpretting facts:
1)"black people are 2-3 times more likely to die during an arrest than would be expected given their proportion of the US population" This is misdirection. You used a statistic of population numbers instead of arrest numbers.
2)" RED says that this is because black people are committing 5-10 times more crimes," This is just an outright lie. I made no such statement.
3)"From what I can find on the web, it is true that black people in the US are 2-3 times more likely to be arrested. So, we agree that the police arrest blacks at a disproportionate rate and this is likely to be the largest factor that explains their death rate at the hands of the police." So you conceed that all of your statements before were false, but still keep arguing?
4)" difficult to prove but an obvious conclusion is that a portion of these arrests are racially motivated." Obvious only if you wish it to be true. Not obvious based on an unbiased view.
5)"Racism is prevalent in the US" No, it's not. Only a minority are racist. ACCUSATIONS of racism are becoming so, tho.
6)"To me, one death due to a racially motivated arrest is too many." Leaps to a blatantly false conclusion. The cop charged with murder was the same race as the decedant.
7)"What body count do you feel is OK?" Basically, a lie posed as a question. Like "have you stopped beating your wife?"
In conclusion, you conceed your claim that "blacks die in custody more than whites in custody" was unsupported, yet continue to beat a dead horse.