The alternatives to policing in situations such as runaways and pedophiles that were brought up itt are organized citizen groups made up of members of the community willing to intervene in situations involving such things as pedophiles or runaway children. The community needs to be empowered to organize itself rather than give up this power to a police force with legal impunity. These types of organizations already exist in places where the police are corrupted to the point of being just another criminal organization.
Great.
What about communities dominated by white supremacists, fascists, and racists? Are you telling me you want to give them the power to police themselves? What kinds of oversight do you want put into place to ensure this system doesn't devolve into mob justice where people of color get lynched because a white person thinks they looked at them wrong?
Police reform, not police abolition. The system is broken; it isn't broken irreparably, and "organized citizen groups" (isn't that almost verbatim what the Proud Boys call themselves? lmao) is a terrible solution that is bound to lead to even more frequent violations of human rights than we're currently seeing. Cops need more training in de-escalation and handling citizens in mental health crises, more money should be sunk into development of less-than-lethal tools and training in use of said tools, and maybe we shouldn't be locking people up for stupid shit like petty drug offenses in the first place, slapping felonies on their records and giving them a reason to violently resist in future encounters with the police.
Combine this with efforts to lift certain communities out of poverty and you'd see a dramatic reduction both in crime rates and in police involved shootings, justified or unjustified, and everyone would be better off for it.