It's going to become a social problem when people start knocking/shooting them down, covering them, or spraying the lenses.
http://newyork.cbslocal.com/2016/04/11/red-light-robin-hood-...
Good luck putting everyone in jail. But hey, we'll all be safer in cells, right? That's what this is for, isn't it? Our safety?
Have you looked at red light camera traffic death stats? This person cited in the story is correct.