Virtually everyone is, including those who oversimplify and go too far with words like "abolish". The problem we have right now is that "successful policing" is currently defined in such a way that there's almost zero accountability for those who enforce the law.
With the so-called justice system the US has got -- which is a mixture of inane proceduralism with senseless brutality -- I'm very much not for "successful policing." I would be, as I think that every person in the abstract would be, if there were comprehensive justice reform and tort reform.
Yeah, so you fit in exactly the category I described. Assuming a better system then almost no one would argue against it, but our system is so tragically flawed that many conclude we don't need a justice system at all.