In the US one of the best demographic predictor of homicide rates is skin color. For instance, super white places like New Hampshire with the ~loosest gun laws in the country have extremely low murder rates.
If you take a look at say a heat map of the US where homicide is[1], it tracks extremely closely to where the black population is (New Mexico an outlier despite having stronger gun laws than most the surrounding states besides Colorado).[2]
What's also fascinating is that this metric is consistent even when controlling for socioeconomic status - ruling out "unfair circumstances! less opportunities!" arguments.
2021 - Ethnic minorities represent over 50% of Birmingham’s population - [0]
2022 - Birmingham overtakes London as 'gun capital' of Britain with huge surge in gang violence - [1]
[0] https://www.mirror.co.uk/news/uk-news/birmingham-overtakes-l...
[1] https://www.birminghamworld.uk/news/ethnic-minorities-repres...