Being a police officer in the U.S. is a hard job and it is only getting harder. People elect legislators to pass laws. Once laws as passed it is up to law enforcement to enforce the law so violators are held accountable. In short, politicians make laws and expect people with guns to enforce them. Every criminal law has a bullet attached to it.
No one wants to discuss how to fix the root cause of crime. Talking heads just want to "reform policing". That's like putting a band aid on a cancerous tumor and expecting it go away.