This does not add anything to the discussion which was about the academic origins of the narrative around race (and other aspects of identity) in the US.
You might also want to check on how many black policemen have been killed recently without a single outcry from those who set your country on fire in 2019 and wonder whether those riots were really in support of "black lives". Did their lives not matter? Here's one of them: Kareem Atkins [1], killed in an ambush in Houston with two other police offers (who also happened to be black) injured. They tried to intervene in an alleged robbery when they were ambushed.
Why is there no outrage from "the black community" in this case? The answer, of course, is as clear as daylight and shows that the outrage has nothing to do with "black lives": when black police officers are killed by "bipoc" men there is no political leverage to be had since it does not support the desired narrative.
Take those ideological blinders off and see clearly, for your own sake and for that of the people around you.
[1] https://edition.cnn.com/2021/10/17/us/houston-deputies-shot-...