Earlier quoted context omitted.
Police unions are different than others in that they are the only group allowed to impose violence on other citizens. No issue with dismantling unions if it is not found to be an optimal organizational solution to minimizing harm.
I think the police's role in state sanctioned violence is a fair distinction, but is violence the only important factor? I have seen a lot of arguments against unions for e.g. harming children by protecting bad teachers; some would argue that the education of future generations underpins a large section of systematic inequality within our society, including poverty and crime, which are issues that also happen to inte…
In most cases, the net harm is actually minimal, e.g. increased levels of incompetence, drinking on the job doing paper work, forcing bosses to outsource, slower delivery times, etc.
In the case of police though, harm can be quite high when bad apples are protected.