You would be wrong. The cops I know much prefer going after thugs. Writing tickets is boring. The people who run the towns want the police doing “revenue enhancement”.
As much as having cameras on cops will help protect them from false accusations, it will also hamper them in doing their jobs. When a cop sees somebody he knows is up to no good, he used to be able to just tell them to get out. Now every lawyer will be ready to file a civil rights lawsuit on everything cops do that may not be by the book, but are important means to keep their communities safe. Criminals must be thoroughly enjoying all of this.
It is a common and observable dynamic, most obvious in metro areas, that the police, who get credit for a stop no matter who they stop, will seek out meek white people and turn a blind eye to criminal minorities just feet away from them.
Why? They want to further their careers but they are afraid of getting hurt.
The best way to stay alive is to avoid minorities, in their view, because they know that minorities are more likely to fight, pull a gun, or flee.
Thus they target white people.