Edit (instead of replying to all of the individual replies):
I'll be the first to acknowledge that there are systemic problems in police forces worldwide, just like there are systemic problems in any large organization, especially one endowed which so much executive power.
However, any argument that paints a picture of "uniform equals bad" is, in my opinion, not only delusional, but is also a severe injustice to the good apples in public service, that is: in service to the public.