Yes, I won the court case .. but my <insert grievous bodily wound> won't grow back.
That still leaves the problem of judgement-proof defenders.
Second: We've seen the effect of bodycams on cops. They aren't exactly helping folks prosecute bad cops if they are even on and working and unobstructed. If we can't do it with cops, we probably aren't going to do real well with the general public.
There are other ways to help folks - Things like robust universal (taxpayer funded) health care and paid time off work for sickness and injury that doesn't take weeks to get. This takes the burden off an accident victims and doesn't punish folks on the wrong side of an actual accident nor make lifelong debt for someone using non-car, non-bus transportation.
Someone in that crowd will literally kill someone at some point. They'd better hope I'm not on the jury at their reckless homicide trial.