They don’t. They shoot more caucasians per year by a significant margin.
Not when normalized. See my parent comment.
Or, reposting:
Ethnicity | EOY-19 killed | July-19 pop est | humans per 10m
------------------------------------------------------------
White, non-hispanic | 370 | 198,256,671 | ~18.7
Black | 235 | 43,984,096 | ~53.5Using the above FBI 2018 homicide statistics, blacks committed 3177 homicides in 2018, while whites committed 3011---in other words, blacks account for ~50%, despite only being 13% of the population.
Taking that proportion as a rough "criminality index," and multiply 53.5 by 13/50, and things look very different.