“My question is how would this crisis be solved, realistically?”
This carnage is, in my opinion, a function of culture rather than prejudice - and a large part of the problem is that the powers-that-be focus on racial prejudice (which exists, but much less so than it did several decades ago) and ignore the consequences of a ghetto culture that hates the cops more than it hates the gangs (which are responsible for much of the shooting, though not all).
Until that’s reversed, (and Groot and the alder-creatures have no interest in doing so), the murder and mayhem will continue and probably increase.
Were I to run for mayor (that’s a joke by the way) I’d give each neighborhood or police district a vote providing the option to continue with things as usual, or to impose restrictions resembling those in martial law, usually associated with extreme circumstances (if you want to consider 800+ murders a year extreme). Those restrictions would include any or all from the following menu: a curfew for those under a given age (19 or 21 or 25, whatever, take your pick; stop-and-frisk priveleges for law enforcement; prohibition of gathering of more than a given number of youths in the absence of adult supervision; and the like. I’m sure the cops could come up with others.
Even if approved in a given ‘kill zone’ (Englewood, Austin, Garfield Park, South Shore, Lawndale all come to mind), such actions would be opposed by the ACLU (from their safe enclaves in the burbs) and by some community activists (in the free-fire zones). And they might not pass legal muster - I have no idea. But short of a religious revival of blblical proportions, I can’t see anything else working.
I was watching a YT documentary on the origins of Star Trek the other day (really had nothing better to do), and they talked about how the networks weren't happy with the Lt. Uhura character, but Gene Roddenberry insisted he wanted a racially-mixed crew. This was in 1964, 57 years ago.
Far be it from me to second-guess the conventional wisdom, but equality of the races has been a subtext of popular culture and the mass media for more like six decades, maybe longer.
It was a subtext (albeit somewhat subtly) on Broadway going back to The King And I and Showboat at least; Showboat dates from 1927, which was 94 years ago. If I'm not mistaken, it was also a subtext of South Pacific. It was certainly part of many if not most sitcoms and popular TV shows since the 1960s.
A large-scale "religious revival" in New York and New England is where the emotional energy that touched off the first Democrat-Republican Civil War originated. That happened between 1820 and 1850. I'm not sure if it could be characterized as "biblical" in proportion, but it did happen.
Of course, Joe Biden (and other Democrats) have hinted that they will use nuclear weapons to put down another such cultural shift, so I don't know.