I kinda feel like the biggest flaw is that copa are usually the ones running for sheriff. So if an anti-cop/capitalist were to run for sheriff they'd have to deal with every cop in their county knowing exactly who they are and what car they drive whenever they're driving/walking/existing in the place they live.

And even if you do get elected I can't see cops arresting their small business tyrant friends for exploiting their employees. At best you get elected and nothing changes, at mid you face constant harassment, at worst you or your loved ones get murdered for ”resisting arrest” and never get elected. Unless you live in some sleepy county where people don't even look at their ballots it's not worth it