Pretty much anything that makes it easier for criminals to do criminal stuff is ineffectual in the long term. Most burglars are young, opportunistic feral humans. They don't want to make noise by smashing a window. That would limit the number of targets they can hit. It's worth it for a lone burglary of a vehicle with a high reward; e.g. the high-end stereo equipment advertised in the back window. For the most part, IME, burglars park some distance away, walk around neighborhoods looking for unlocked car and take change, sunglasses, GPS units, stereos, speakers and anything else of value. When I was a small town cop, our police commissioner had his tailgate stolen. He didn't even notice it the first time he drove it.