Studies show red light cameras don't decrease accident rates in the intersections they're installed at. Furthermore, some municipalities have started doing things like varying timing of the light cycle to get more people running red lights for the increased revenue. These cameras haven't been shown to decrease accident or injury/fatality rates anywhere they're installed. If you're against people being slaughtered by cars, it seems you should be against red light cameras since they don't do any good and have the potential to make things worse.