I'm not saying you haven't, but (if) working within the police, I'm sure you are less likely to come across it, than people not working in it.
Many/most do a good and brave job, and are often hindered by some of those in charge as you say. You go towards incidents the rest of us get away from, but my experiences around football related policing is that it's not always great. It's better these days than it used to be, but still far from perfect, as football fans are still often treated like we're still all hooligans.