No amount of security will stop a professional from stealing your vehicle.
Now if you want something to stop break ins or damage, a dash cam might be better if it has movement activation enabled.
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Nothing will stop break ins or thefts ever. You could sleep beside the car and someone could come stick a gun in your face and take it from you .
I was simply giving an opinion. If you feel that you have a better or smarter idea feel free to enlighten us.
Better or smarter idea? All I'm saying is that
a dash cam is not a theft deterrent on a parked vehicle. It is also fair to say that 99% of all dash cams sold do not have a SIM card (i.e. capability to sent video via a cell signal). This isn't a Debbie Downer thing, rather the reality that break-in's occur and a dash cam can actually make it more inviting as an item itself to steal. As to a deterrent, that would all depend on the level of deterrence. A pit bull in the car with the windows down an inch or two (on a cool day and with the vehicle parked in the shade) in an area with high foot traffic will probably not be touched. But it is unrealistic to think you can leave a pit bull, German Shepard or
any dog for that matter in a vehicle for an extended period, especially if it is hot outside.
Beyond the basics like parking in a well lit area with high visibility public traffic, it is the law of averages your car will be hit. Just like getting rear ended on the freeway. You can do everything possible to be a safe driver, but some things are out of your control.