Good points as always!

But I also check numbers as always and you don't need to fix this, but the table you looked at was for arrests and not for murders committed. This means the number is lower than it should be because of the systemic under-investigation of crime in predominantly black communities (and probably some unwillingness to work with police, too). The numbers of reports are here: https://ucr.fbi.gov/crime-in-the-u.s/2019/crime-in-the-u.s.-2019/tables/expanded-homicide-data-table-3.xls

This suggests--if the "unknown" category is evenly distributed over races--that the actual number of murders is probably around twice that (though if the murders aren't solved, it's hard to know for sure).

But twice a tiny tiny fraction is still a tiny tiny fraction. It doesn't change your conclusion at all. I just like accuracy. (Also, people live more than one year...so the number of murderers is considerably higher than the number-of-new-murders-per-year. Still a tiny fraction, conclusion still doesn't change.)