40% of the police in the US, or more, are domestic abusers. Most of the police in the US are men. When we protest police violence, we are protesting male violence. The same goes for SARS. Bands of men given weapons and legal authority with no accountability? What could possibly go wrong...
I think part of naming the problem on this issue is for feminists to recognize that the police have never really been there to protect women, in most/many countries. Crimes that mostly only women experience, like sexual assault, harassment, etc, are generally ignored. Property crimes and other crimes women are equally susceptible to like men are, are also frequently ignored. The only crimes that are actually policed are the ones that mostly only men participate in. Drug crimes, violent crimes against strangers, murders, etc. (While women are mostly murdered by men, men are more likely to attack other strangers who are men than they are women). Edit: police will control women's behavior in particular ways, like enforcing anti-prostitution laws by arresting prostitutes instead of johns, and by arresting topless women even when the law allows women to go topless, for example.
Police brutality is a male violence problem and I don't think we can fix police brutality while also maintaining police forces that are predominantly male.