I'm not excluding. There's no point in attempting to do that here on HN, I seriously doubt anybody here fails to at least vaguely understand the condition of US inner cities: they're war zones.
The point is obvious: highly elevated rates of murder in the US are particularly hyper concentrated to a small number of urban zones, to a very abnormal degree. The high US murder rate isn't a comprehensive problem spanning all national population centers. You can't get anybody to talk about this fact though, they shout you down and or run away from it.
You want proof of that? Normalize the murder rate for cities like Chicago, Baltimore, St Louis, Memphis, etc. to that of NYC or San Diego or Seattle or Austin TX circa 2019. Watch how the US murder rate dramatically plunges overall.
St Louis had a 65 per 100k murder rate in 2019. Baltimore was 58. Birmingham was 50. Detroit was 41. Those are war zones. Kansas City and Memphis were 29.
A city like eg Pittsburgh also has serious problems, but it's at least down at 12 (still high by any sane standard). If you reduce the high US murder cities down to just that (ridiculous) ceiling, you'd drop the US murder rate by a lot. Again, concentration is the obvious point, and it's very easy to prove. The obvious question is: what's being done to improve those high murder concentration areas? Not much is the answer.
You can also see this concentration fact in action easily by comparing sections of Chicago or Baltimore, to the overall city murder rates, or the overall state murder rates (for IL or MD). It's not subtle, it's an extreme variance, far beyond what you see in eg Amsterdam vs the Netherlands or Toronto vs Ontario or Canada. It's not normal at all.
The way people try to live in cities like Los Angeles or Chicago or Baltimore, is by entirely avoiding the extraordinarily dangerous areas. If it can be avoided people simply never go to those neighborhoods, they don't drive through there. They're de facto war zones, occupied territory owned by gangs, and everybody knows it (including the police).
And this is the point that absolutely nobody at a high political level in the US wants to discuss, even though to fix the US murder problem you have to start talking about it. How to fix the US inner cities, which are in terrifying condition. You only ultimately fix the inner cities in the US through dramatic concentrated economic improvement, and looking back over the past several decades, neither party has done much of anything about it (the results of that are right there staring at us every day).