ViolentPanda
Hardly getting over it.
The police are always angry. They hold the people they serve, in contempt, most of the time. Demonstrations give them the opportunity to play out that contempt, with impunity, on the whole.
Talk to any copper who's been in the job for a few years, one-on-one, and (in my personal and professional experience) the majority (I'd say 4/5ths) of them are alienated (in the psychological rather than the socio-economic sense of the word) from the people they're supposed to serve (except for detective-boy, obviously, because he's perfect!).
A lot of that alienation is attributable to the kinds of institutional attitudes and prejudices that circulate within the profession, and the fact that the police services are a "closed" culture (as is the military) means that modifying or neutralising those attitudes and prejudices is a long and difficult job that would require political will and the expenditure of political capital. Not something you could expect the previous or the current band of ignoble capitalist toadies to be willing to do.