Compared with its peers, America overall does an unusually poor job of solving killings. The murder clearance rates of other rich nations, including Australia, Britain and Germany, hover in the 70s, 80s and even 90s
And yes, its because the cops are racist and break trust with communities
I would argue the size and population of the country don’t help. Half the country is empty and a population of 300+ million doesn’t help. Plus good ole fashioned police incompetence