I approve of red light cameras. I have occasionally spent some winter time in central Florida and a few years ago red light running was epidemic; I saw red light runners almost every day that we were out and about. Since red light cameras were put into use, red light running there is almost never seen by me including intersections where there is no camera. Some would argue that stopping suddenly for red lights instead of running them would cause rear end collisions but that has not seemed to have happened. People can and do adjust to known and unknown red light cameras and drive accordingly. It’s unfortunate that some people need to be watched to get them to behave.
When big city freeways were fairly new where I live, low speed rear end collisions occurred almost every day during rush hour traffic tieups on urban freeways but drivers adjusted to that too; learned to not follow too closely and be unalert at the same time.
Drivers can be smarter than some would want to admit.
I approve of speed cameras too as long as they permit some speed limit tolerance.