Violent crime rates are almost 100% predicted by demographic factors that you can’t control (except at the margins, e.g. by evicting problematic demographics or by voting for immigration laws that favor beneficial demographics).
"Homicides and aggravated assaults rose beginning in late May and June 2020. Homicide rates between June and August of 2020 increased by 53% over the same period in 2019, and aggravated assaults went up by 14%—and both increases were statistically significant."
What demographic changes from 2019 to 2020 explain an over 50% increase in homicide rates?