Let me ask you, Dam, if the US Black community are in 'uproar' collectively speaking, of this 'differential treatment', would you say they're making shit up...??
Multi faceted question.
Firstly, I dont believe such a thing as "the US black community" even exists. Its a total non-sequitur like all identity politics is. People aren't defined by the colour of their skin and are certainly not any form of a bloc that holds a single opinion. There's plenty of black people who think the opposite of what you're implying. "What white people think" is a stupid idea, same with black people.
Secondly, even if such a group did exist then them thinking something doesn't make that a reality. Many far right people believe there is a Jewish conspiracy to control and erase white societies. Is that correct because some "bloc" or classification think it? Of course not. Popularity is not reality, especially in a world where there's about 10 sources of primary information in the world that mainly inform people.
Moving to what seems like the crux of the question - you seem to be asking if the United States is institutionally racist. Of course the United States is institutionally racist. It has been a country built on racial and identity politics since its inception and thats even apart from the general Western world racism.
But many of these people being highlighted in the media aren't being killed because they are black. They are killed because they fucked with a Police force that is so panicky and anxious that they draw guns like they're toys, or in some cases because they're criminals and dumbasses. Arguably the biggest thing that draws victims together is that they're almost always poor.
Then again, cops should probably be more on guard in poor areas because there's more chance of them getting killed there than in the Hamptons.
You see that's the thing. Societal issues arent a tweet or a slogan, they're complicated with many layers of history and human behaviour wrapped on top of them which politicians attempt to strip away in order to create a swell in a voting base. I'd say that people on the more further fringes of the political spectrum are being manipulated more now than they have ever been at any point in modern history. Conflict is good for the media, its good for politicians and its good for industries that are orthogonal to those such as social media so it will continue unabated in any form it can muster.
This isnt super relevant but if you want to know what I REALLY think is a huge problem, its the fact that now in everybody's quest to be a Disney type hero protagonist in the story of their life then they're just inventing antagonists and running with it but that's for another thread.
So part yes and part no