For a variety of reasons, the black community feels this pain disproportionately.
I wouldn't write off BLM as having such a simple message; you clearly did not grasp it. "Black lives matter" means just that; not "pigs are racist".
Was that disproven? The studies that I've read have shown disproportionate police shooting fatality rates among African American men, especially in the unarmed case when adjusted for population. [1]
The unarmed case is the one I pay attention to the most as I think that it (mostly?) filters out cases where shootings were justified.
I'd like to keep an open mind so I welcome any reading that has disproven the disproportionate argument.
https://www.washingtonpost.com/graphics/national/police-shoo...
Other studies have found no bias in police shootings, including this one by black Harvard economist who set out with the assumption that police disproportionately killed Blacks: https://scholar.harvard.edu/fryer/publications/empirical-ana...
There have been a few others as well. I should also clarify that my use of "disproven" is too strong. I should have said "the bulk of the evidence supports a contradictory conclusion" or some such.
An armed person can be shot and it can still be unjustified. The presence of a gun does not mean there was any danger or even the appearance of danger.
An unarmed person can give the appearance of having a weapon or may pose a clear threat regardless and such a killing could be justified.
I think mostly paying attention to the unarmed case allows the armed case to mask any potential problems, while also includes the implicit assumption that unarmed cases are mostly unjustified will exaggerate the appearance of problems.
Have you adjusted for crime rates?
https://ucr.fbi.gov/crime-in-the-u.s/2014/crime-in-the-u.s.-...
These statistics don't involve a trial or conviction. It's based entirely on the police report when the crime was reported and only includes the race of the offender when that information is known.
"Perusal of Table 4 reveals that suspects were an average age of 36, with whites somewhat older than blacks. Thirty-nine percent of the suspects were involved in a violent crime, 17% in a property crime, and 5% in a drug crime. Hispanics were less likely to be involved in a violent crime, while blacks were more likely to be involved in a property crime than whites or Hispanics. Blacks are least likely to be armed."
One anecdote about the weed thing, since that comes up so often--I live in Chicago and apart from festivals, I never see white people strolling around downtown smoking weed, but I do see this probably once a month, and the user is consistently black. The white people I know who use marijuana do so at home and out of public view. This is just an anecdote, but cultural differences in usage could better explain the arrest discrepancy than police racism. At least I would like to discontinue the trend of assuming that every gap is necessarily and automatically attributable to discrimination.
[1]: https://www.researchgate.net/publication/256079484_No_eviden...
https://www.washingtonpost.com/news/wonk/wp/2016/07/08/the-b...
Studies have also shown that disproportionate police shooting fatality rates among men when adjusted for population (50% of the population are men but 96% of those shot by police are men).
Violent crime rates are the more useful base rate than the general population. This is the best study I've seen to date that attempts to take into account rates of violent crime: https://www.nber.org/papers/w22399
This is because black cops work in cities and areas with higher proportions of black people.
It's also kind of a bummer that BLM started with the "white cops killing black kids" narrative, then when the data showed that black cops are much more likely to shoot a black kid than are white cops, they transitioned to "cops are disproportionately killing black kids", then that was disproven and their issue became the more nebulous "systemic inequalities in policing", but not before a lot of criminal veneration (Michael Brown) and hand waving about how rioting may or may not be justified.
The moral of the story is they may have had a valid point, but they've totally discredited themselves and probably made policing less effective for the most vulnerable communities.