Until everyone behaves within acceptable societal standards traffic / red light cams are a reasonable part of the strategy to steer assholes towards the goal. As much as awareness campaigns, improving training, lowering vehicle velocity when it sees yellow automagically maybe…
Which doesn’t mean there aren’t unfortunate abuses by cops or city wrt shortening yellow duration to pocket more cash or such like.
And I strongly believe that cops should be doing more interesting cop stuff then enforcing traffic tickets in our days and age.