Snap your fingers and make the black population disappear and the US becomes one of the least violent nations on the planet overnight.

The Chicago Sun-Times tracked 503 homicides in 2019. https://chicago.suntimes.com/crime/2020/1/1/21045319/chicago-2019-crime-stats-decrease-murders-shootings-gun-violence-police-department-lightfoot

there were 271 homicides recorded in Detroit https://www.detroitnews.com/story/news/local/detroit-city/2019/12/26/detroit-end-2019-uptick-homicides-amid-violent-crime-drop/2749406001/

There were 166 in DC in 2019 https://wjla.com/news/local/washington-dc-2019-homicide-rate

194 in st Louis in 2019 https://www.foxnews.com/us/st-louis-surpass-2019-homicide-rate

120 in 2019 in New Orleans https://www.wdsu.com/article/new-orleans-murders-in-2019-what-the-data-tells-us/30899265

In 2018, the estimated number of murders in the nation was 16,214.

https://ucr.fbi.gov/crime-in-the-u.s/2018/crime-in-the-u.s.-2018/topic-pages/murder

16214/330,000,000 = .0000491333 * 100,000 = 4.91333 per 100,000

That same math minus those cities is 4.49249% Which from what I see would move us from 55th place to
64th. However if you exclude those cities you also should remove those citizens from the total US pop count and I'm too lazy to do that.

Tldr; we're actually like 55th in the world in homicides and we'd end up like 64th.