The idea is that you remove half the police work load, hire half the officers, and use that savings to assign that removed work load to more appropriate people like social workers, unarmed traffic enforcement, etc.
Cost per officer doesn't have to change.
It has been fully adopted and distorted by right wing commentators. As the people actually yelling about “defund the police” are poorly organize and have no message, they are drowned out by the people criticizing them, and enabling union action like work to rule stuff in places like NYC.
People in high crime areas don’t want to be abused by police. Police need to behave to professional standards. Pandering to activists and not enforcing the law doesn’t benefit the actual people living with crime.
So now in many places we have police not acting on crime because Johnny Crackhead can trivially jam them up with frivolous complaints, yet police departments obviously struggle with self-policing. Good old fashioned audit and accountability is the oblivious, non-sexy solution.
Granted, social program funds haven't increased, but there's no world in which we invest more in education or mental health services or anything else and it makes up for the drop in policing with respect to deterring crime. If you keep policing in tact and invest more in public services, maybe over decades you'll see a significant improvement (because investing in public services doesn't pay out immediately), but if we divest ourselves of policing, then crime becomes a much more powerful and immediate drag on underserved communities than the lift afforded by investment in (non-policing) public services. We need policing and public services.
> And any count of crime surge should also include crimes committed by police under color of law.
Even if you count every police shooting as an unjustifiable homicide (on the order of hundreds), they are completely dwarfed by the non-police homicides (on the order of tens of thousands). Indeed, the increase in annual homicides is about 10k since the pre-BLM era (a ~60% increase)--the increase alone completely dwarfs all officer-involved shootings.
"Abolish the police" is the message of a much smaller group.
And any count of crime surge should also include crimes committed by police under color of law.