You cannot just isolate each contributing factor because they do not operate in isolation.
Crimes that warrant the use of deadly force better involve firearms. So the 5x stat most certainly is an isolatable statistic.
For example, if a black youth is 3 times more likely to have gun and 4 times more likely to have a criminal record, then they are 12 (3 X 4) times more likely to have the combination both having a gun and a criminal record.
Ignoring the fact... wait... lets not ignore it, let's cut that arithmetic failure in its place. First the most blatant:
1) 3x4 = 12. Yes, it does. How that is even remotely applicable to the subject, however, is lost on me. It would be 3 + 4, assuming some bad assumptions. That'd be 7x, not 12x.
Combined probabilities of two things occuring are multiplicative of the odds of each thing, not additive. Thus, differential probabilities across factors are also multiplicative.
2) Youth with guns and youth with criminal record are overlapping considerations. Therefore, it is likely most with guns are almost also the same people with the criminal record. So now bump back down to about 4x again.
I already noted that the factors are not independent, thus it is less than 12, but they are also not perfectly correlated either, so it does not "bump back down to four". Your claim is only true if every person with a gun at this moment already has a criminal record and every person with a record has a gun at this moment. Since that is nowhere near true, the multiplicative difference in probabilities is notably higher than 4 but less than 12.
Depending upon the overlap of these factors, the multiplicative difference in probability can be lessened, but there is still some degree of multiplicative effect that across the many factors could get close to 21 times.
No, because the only ones offered that are racially based is 3x and 4x.
I have offered many more factors across my posts beyond gun possession and a criminal record. Again, while they overlap they are also partly independent and thus multiply.
Is there some amount of racism above and beyond all those factors? Almost certainly. Cops are the ones directly witnesses and living the objectively higher probability that a black person they approach is an armed criminal. They would have to be non-human robots not to have these daily experiences create differences in expectations that serve to cloud there judgment when no real threat exists. However, it is more than plausible that the bias of the cop (whether rooted in objective experience or racist beliefs) is a relatively small portion of that 21 times difference compared to the factors that black and whites objectively differ on and would be expected to impact the probability of a cop shooting.
You haven't presented such a case.
You haven't presented anything whatsoever that support racism as a cause at all.
Your God of the gaps argument is nothing more than "I don't think known factors can explain it, and whatever they cannot explain is racism." The burden is entirely upon you to show that the known factors, clearly shown to causally impact shooting probabilities, cannot account for the discrepancy in question. I am throwing you a bone and acknowledging that some of it is likely racism, but the existing data and accurate understanding of combined probability differentials tells us that the known differences in behaviors definitely account for a sizable portion of the discrepancy and nothing you or anyone else has presented suggest that the 21 times is beyond what these factors can account for. In addition, my explanation has far more explanatory power and parsimony, able to explain why blacks are shot more not only by white cops, but by non-cops, by blacks, and by black cops. Your account can only cherry pick what data it accounts for and ignores contradicting data, such as the fact that black cops have a much higher bias toward shooting black suspects over whites, than even white cops do.
From The Article said:
White officers killed 91 percent of the whites who died at the hands of police. And they were responsible for 68 percent of the people of color killed. Those people of color represented 46 percent of all those killed by white officers.
Black officers account for a little more than 10 percent of all fatal police shootings. Of those they kill, though, 78 percent were black.
I have highlighted the two directly comparable numbers showing that white cops shoot a larger raw number of white people than black people, but black cops shoot way more black people than white people. IOW, the bias in being more likely to shoot a black suspect than a white one is much larger by black cops than white cops.
This is the opposite of what is predicted by the racist cop theory, but exactly what is predicted by the theory that is due to the probability of encountering a black or white suspect engaged in activities that contribute to their shooting. Black cops are often assigned to black neighborhoods for "community outreach" reasons thus they encounter more blacks in general.