Dallas PD has a budget of ~$500 MM, and has 3,000 officers and around 500 civilian workers. They only have ~15 homicide detectives.
The other 2,985 officers do a lot of policing of "high crime" neighborhoods. Arresting lots of poor Black folk for drugs and other minor crimes.
I'm not going into assault, other than to say: If in 2023 your definition of assault is "Men beating up men that they don't know," then I don't know what to tell you.
If you know that most assault is "Men harming women that they do know," then no explanation needed.