Heymon:
You Jamaican? I ask because it's a common greeting there and I love the place - spent a few months living there... :) :)
As has been mentioned, these people aren't just stealing because they need that $20 grill that is now used and worth $5... They are stealing for "other" things and, as has been pointed out, you can't know how they will react if they are caught in the act. Being stabbed in the dark because you were going to the bathroom is an inglorious way to die.
A sensible person, (I count myself in that group), would choose safer places. It simply isn't worth the risk/hassle. On the other hand, if I have few other choices I'd make sure that if they enter my campground they will probably find themselves looking down some size barrel depending what I'm carrying at the time...
Your life is worth a bit more than messing with people like that...