This is what you said: "Please look at the numbers. The media narrative is a lie. Police violence is in precipitous decline, and black on white violence far exceeds white on black. If we just let the narrative melt logic and statistics we're not really saving any lives."
But the problem is, police violence is not on the decline at all and you've presented nothing whatsoever to counter the statistics that you claim are painting an incorrect picture. By your own admission, the statistic you did cite isn't actually relevant to this discussion. Why are you even mentioning it then? But then you want to resurrect it because you have nothing else.
The rate of murder of whites by blacks has zero to do with police brutality or institutional racism. It doesn't even prove that blacks perpetrate more racially motivated crimes. What it shows is that more black people are poor.
In a 2018 reporting on hate crimes from the FBI, in the cases where the race of the perpetrator was known, whites were more than twice as likely to have committed them.
Of the 6,266 known offenders:
53.6% were White
24.0% were Black or African American
12.9% race unknown
Another way that the statistic about black on white violence doesn't show the whole picture is that although more than twice as many black-on-white homicides occurred compared with white-on-black homicides in the year that was measured, "white-on-black killings spiked by 22.5 percent between 2014 and 2015 after years of mostly trending downward. Killings of whites by African Americans increased by 12.2 percent, while black-on-black and white-on-white killings increased only slightly - by just 7.9 percent and 3.5 percent, respectively - between 2014 and 2015, after mostly falling since 2008."
The increase in the incidence of white-on-black killings went up more than twice as much as black-on-white homicides. What percentage of those were racially motivated is unclear, and there are many other reasons that people (who may just happen to be of different races) kill each other. So unless you do know for sure what the motivations were in all of the black-on-white killings, it is not only an intentional misdirection to claim that they all are, but it also doesn't disprove institutional and systemic racism, even if 100% of them were racially motivated.
Poverty and socio-economic class is a predictor of violent crime, although the wealthy are noticeably more likely to commit white-collar crimes. Most crimes are committed by young men who are poor and live in urban environments.
"First, African Americans and Latinos are much poorer than whites on the average, and poverty contributes to higher crime rates. Second, they are also more likely to live in urban areas, which, as we have seen, also contribute to higher crime rates. Third, the racial and ethnic discrimination they experience leads to anger and frustration that in turn can promote criminal behavior. Although there is less research on Native Americans' criminality, they, too, appear to have higher crime rates than whites because of their much greater poverty and experience of racial discrimination (McCarthy & Hagan, 2003)."
What happened five years ago or even 50 years ago speaks to a history of institutional racism and police brutality - which is what this OP is about. It speaks to the trends that you are so keen to pretend don't exist. Each individual incident combined with all the thousands of other similar ones paints a very clear picture of the state of things. There have been 5 deaths that demonstrate the prevalence and insidiousness of institutional racism in the past month, which is why things exploded after this last one. Is that recent enough for you? The outrageous narrative is that these happen so frequently and yet nothing really changes. The other outrageous narrative are the one like yours - full of dismissal and head shaking but with not a single thing of substance to support it and in some places complete misrepresenting the facts and the truth.