There was a similar spike in murders during the 1970s and early 80s, and during the 1920s and Great Depression.
They had a story a week or so ago about how all crime is up and speculated that the police are less likely to interact with the public because they’re afraid the encounter will escalate and they will end up getting prosecuted for doing their job. Think they even had an “expert” to back their claim.
So what you get is police who won’t do their job out of fear of retaliation and people seeing there are no consequences for their actions just doing whatever they want.
And, of course, the current narrative is the police are “silent quitting” in protest because who else are they going to blame?
It's too bad nobody has the political will to get rid of and rebuild whole PDs. That's what it will take to get rid of bad cops.
Totals are not up, and "red states" are much more violent.
As you observe, police funding has about zero effect on crime.