Everything is at some point the fault of the police. It seems like everyone wants the police to do only what they want them to and to be punished if the police do something different.
Now I don't come from the US so can't comment on the problems with the police there and I don't know how the police there are funded but I know from my country that some of the "solutions" stated to hold the police to account would bankrupt the police here, but then I suppose that's the fault of the police as well.
I'm all for bodycams though because at the end of the day when a fabricated complaint comes in (my experience is most of them are) then these can be easily dismissed and hopefully those people actually held to account.