> 92.6 percent of prosecutors’ offices in jurisdictions with body cameras have used that footage as evidence to prosecute civilians

I'd suggest browsing body cam footage on youtube for a bit. If you see the sort of stuff being prosecuted it might not bother you.

If it hasn't reduced police use of force or misconduct (I find this claim questionable) I think that's unfortunate but regardless it's important to implement systems that document that to the greatest extent possible. If we do that today then maybe it can be reduced tomorrow.