Even ignoring that misunderstanding, speed bumps can be absolutely great. They can‘t be installed everywhere since they also significantly slow down emergency services, but combine speedbumps and a crosswalk and you get a raised crosswalk, which is a great measure to increase pedestrian safety.
EDIT: I've been away from the States for too long. I was indeed thinking about speed bumps, not traps. Traps are cameras, and they therefore get a thumbs up from me in the beautiful bounties-on-everything-we-care-about future.